WHY2025 wiki - User contributions [en]

Badge Issues

2025-08-14T00:28:25Z

Bytefighter: /* Answered */ combine and clean up questions about selecting a wifi network

== Please edit this page ==

'''Please edit this page to add your issue or increase the count
'''

The ''[number]'' in front of each question is the counter. Increase it if you have the same question.

== Badge Hardware Questions/Issues ==
=== Answered ===
* [1] After reflash and exiting the intial sponsors screen, the screen stays blue.
** => Reflash the badge using the web flasher. (https://why-prog.heplaphon.com/). Use the USB socket on the left side for flashing. After the update unplug/replug the USB. Make sure to use a good cable as the badge is power hungry.
* [2] How do I reset the badge on battery?
** => Applying usb power will reset the badge
* [4] Batteries ar being held firmly (maybe a bit too firmly) in place in the battery holder. How can I safely remove the batteries? What tool to use for this without damaging the batteries or the PCB?
** => Try gripping it with rubber gloves on.
* [3] The badge suddenly stopped working. Serial shows boot-loop with message <pre>Cannot connect to target. Error: TIMEOUT </pre>
** => Reseating the ESP daughterboard (fitted with a screw) helped here.
** => M.2 socket of ESP daughterboard can break off without being immediately visible. This also leads to this error. [https://chaos.social/@xro/115011118785473303 Re-soldering fixed it.]
Trace of boot-loop:
<pre>
./idf.py monitor
W (1098) fatfs-sd: SD card not mounted
E (1108) device: The device does not exist SD0
Cannot connect to target. Error: TIMEOUT
Check if the host and the target are properly connected.
E (4828) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
HINT: Please reboot the board and then try again
E (4828) sdio_wrapper: sdmmc_card_init failed
E (4828) H_SDIO_DRV: sdio card init failed
Crashing in ESP-IDF task
Guru Meditation Error: Core 1 panic'ed (Instruction access fault). Exception was unhandled.

--- Stack dump detected
Core 1 register dump:
MEPC : 0x00000000 RA : 0x00000000 SP : 0x4ff278c0 GP : 0x4ff18580
TP : 0x4ff278e0 T0 : 0x4ff0f4a6 T1 : 0x4ff120a8 T2 : 0xffffffff
--- 0x4ff0f4a6: spinlock_release at /home/bernhard/source/why2025-badge-firmware/components/esp_hw_support/include/spinlock.h:181
</pre>

=== Unanswered ===
* [3] Screen flickers sometimes. Is this a defect? I tried looking at the screen ribbon cable, it seems OK.
* [4] screen is not turning on at all.
* [7] Can not turn off badge while charging.
* [8] The antenna isn't connected yet. Can I use the device without damaging anything?
* [9] One battery holder has a big blob of epoxy where it should contact the battery. Is there a good way to remove it?
* [10] Badge updates apps after starting an app that isn't the updater
* [11] Sponsor screen replays (unskippable) after every flash
* [12] Double-tapping the power button doesn't shut down the badge
* [13] Where do we get the badge now that the event is over? The lines were huge or the stand was closed. Can we pay for shipping to get them later?
* [2] How to solder the antenna-connector? The center pin can't be reached.
* [14] Is it possible to insert an SD card without removing the daughter board (with cells installed)?
* [1] Some keys (the `w` key in my case) don't register. I've tried with the nametag app and with the new System Settings app, and it didn't work on either. [[User:Bytefighter|bytefighter]] ([[User_talk:Bytefighter|talk]]) 01:24, 14 August 2025 (CEST)

== Badge User Questions/Issues ==
=== Answered ===
* [1] Inside program “c64emu” v1 trying Shift+{number} prints the number to console and not the symbol. This behaviour works in “crackme” v3.
** Thank you for reporting this, I've fixed this and released a new version with improved keyboard handling (v2.0.1). --[[User:Wallaby|Wallaby]] ([[User talk:Wallaby|talk]]) 14:37, 11 August 2025 (CEST)
* [5] WHY2025 OTA updater is not reacting.
** => We are working on this. For now, don't touch it and instead just wait at least 30 seconds.
*** => This didn't work for me; I had to re-flash the firmware. [[User:Bytefighter|bytefighter]] ([[User_talk:Bytefighter|talk]]) 08:53, 13 August 2025 (CEST)
*** => Any update on this? "OTA" and "Hello" app don't do anything. Not even an error message. Is there a hidden Wifi settings menu or something for the "over the air" part? Maybe a USB-C to Ethernet dongle?
* [3] There is a stripe in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
*** I saw at least one device where the sticky tape area was '''under''' the front cover. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
* [2] There is a stamp HD3 in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
* [2] Could do one update, then three updates and then BadgeVMS Firmware Version 4. Now I a offered this update on every boot and can do nothing else, even though I have installed it already
** reboot fixes this.
* [3] My Badge is showing a yellow screen. Its starting with a blue screen and shows the Menu for a few seconds an then turns yellow. What does this indicate?
** The v5 firmware had this bug. Reflash with a newer to fix.
* [11] I’m finally home! How do I connect the badge to my local Wi-Fi?
** Lazy, hacky method: Create an open Wi-Fi network with the SSID "WHY2025-open" (the O not as a capital letter) and run the OTA update app.
** Easy method: Use the [https://why-prog.heplaphon.com/ WHY badge flasher] to install the "BadgeVMS post_event" firmware which includes an app called System Settings which allows you to connect to your home Wi-Fi network.
** Developer method: Clone the badge firmware repository. Edit `wifi_config` in `badgevms/drivers/wifi.c`. Change `.ssid` to your network name. Directly below `.ssid` add a line with `.password = "your network password",`. Then build/flash the firmware: `idf.py build flash`.

=== Unanswered ===
* [4] OTA update screen appears on first boot, after pressing space bar, blue screen with nothing happening for over an hour.
** Have the same problem after first OTA update. Update started but the device stuck on bluescreen for an hour or so before I removed power. After flashing a new firmware using the [https://why-prog.heplaphon.com web updater] it works again (use the USB slot on the side, otherwise you get an error message "Your ESP C6 chip is unsupported"). [https://pastebin.com/VjMA5ZZA Logfiles] --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
*** No, it doesn't. It displayed the sponsors page once but returned to the bluescreen afterwards. [https://pastebin.com/cCKejKCk Logs from the side USB port]. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:18, 11 August 2025 (CEST)
*** Uploaded another log containing the complete first boot after flashing the new firmware: https://pastebin.com/3NiSRncL (edit: see below). Note the exception at the end: "Task 4 caused an unhandled exception, Cerberos will deal with it". After that, no new entries appear and the display stays blue. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:25, 11 August 2025 (CEST)
*** Was wrong about that again. There were more log entries while I wrote the previous comments. Here is the complete log: https://pastebin.com/KMQwhBPv --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:34, 11 August 2025 (CEST)
** Anyone managed to fix that errpr and getting the Bagde running again? --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 13:16, 13 August 2025 (CEST)
* [7] Blue screen. Nothing happening.
** => Not official answer: What helped for me was reflashing the badge via the flash station at the badge tent.
* [1] Cannot build the firmware from https://gitlab.com/why2025/team-badge/firmware/. Tried to build main and flashed_at_first_handout - both fail because of the following error: https://pastebin.com/H4xwPLhC
* [1] stuck at do_http(https://badge.why2025.org/api/v3/projects/why2025_firmware_ota_c6/rev4/files/version.txt) error: server response: '{"reason":"No app with slug 'why2025_firmware_ota_c6' and revision '4' found"}'

* [5] The badge is not detect on my mac when I connect it by side port:
** '''Don't''' use brew, it has been reported not to work.
** Follow these instructions: [[Badge/MacOS_Drivers]]
* [1] I can't flash the badge - it says the board is incompatible
** => Use the USB-C port on the side of the board, not the one on the bottom
* [1] The letter "a' is represented by a horizontal dash in the nametag app

== Badge Firmware Development related Questions/Issues ==
* [2] Flashing takes forever (>40 seconds) for a trivial application. Can I speed this up?
* [1] After installing OTA update, application updates AND System Update "BadgeVMS Firmware, Version 4, Main Badge Firmware" the system restarts showing System Updates => "Updates available 1" => "BadgeVMS Firmware, Version 4, Main Badge Firmware". Selecting it, installing it and autorstarting leads back to this same screen. I seem to be stuck in a loop of the update process.
** => Shut down your badge by double tapping the power button. Restart. You should now see the application WHY Application Launcher.
*** => But double-tapping the power button doesn't shut down the badge...

==BadgeHub related Questions/Issues==
* [2] How do I get apps from the BadgeHub onto the Badge? Is it possible without an SD card (I don't have one). I can build apps and flash the firmware, but I have no idea how to get pre-compiled ELFs on there.
** => If you have a SD card (if not, the mysteryhack village has a vending machine): Create the folder stucture ./BADGEVMS/APPS on there. In there, create a folder named like the badge hub project name. Download and put the .elf in there. Create a json file with the project name next to the folder and put the key/values for name, unique_identifier, version and binary_path in there. binary_path is just the full name of the .elf file.
*** => the mysteryhack village vending machine has been out of SD cards since day 0 or 1

Badge Issues

2025-08-13T23:26:26Z

Bytefighter: /* Unanswered */

== Please edit this page ==

'''Please edit this page to add your issue or increase the count
'''

The ''[number]'' in front of each question is the counter. Increase it if you have the same question.

== Badge Hardware Questions/Issues ==
=== Answered ===
* [1] After reflash and exiting the intial sponsors screen, the screen stays blue.
** => Reflash the badge using the web flasher. (https://why-prog.heplaphon.com/). Use the USB socket on the left side for flashing. After the update unplug/replug the USB. Make sure to use a good cable as the badge is power hungry.
* [2] How do I reset the badge on battery?
** => Applying usb power will reset the badge
* [4] Batteries ar being held firmly (maybe a bit too firmly) in place in the battery holder. How can I safely remove the batteries? What tool to use for this without damaging the batteries or the PCB?
** => Try gripping it with rubber gloves on.
* [3] The badge suddenly stopped working. Serial shows boot-loop with message <pre>Cannot connect to target. Error: TIMEOUT </pre>
** => Reseating the ESP daughterboard (fitted with a screw) helped here.
** => M.2 socket of ESP daughterboard can break off without being immediately visible. This also leads to this error. [https://chaos.social/@xro/115011118785473303 Re-soldering fixed it.]
Trace of boot-loop:
<pre>
./idf.py monitor
W (1098) fatfs-sd: SD card not mounted
E (1108) device: The device does not exist SD0
Cannot connect to target. Error: TIMEOUT
Check if the host and the target are properly connected.
E (4828) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
HINT: Please reboot the board and then try again
E (4828) sdio_wrapper: sdmmc_card_init failed
E (4828) H_SDIO_DRV: sdio card init failed
Crashing in ESP-IDF task
Guru Meditation Error: Core 1 panic'ed (Instruction access fault). Exception was unhandled.

--- Stack dump detected
Core 1 register dump:
MEPC : 0x00000000 RA : 0x00000000 SP : 0x4ff278c0 GP : 0x4ff18580
TP : 0x4ff278e0 T0 : 0x4ff0f4a6 T1 : 0x4ff120a8 T2 : 0xffffffff
--- 0x4ff0f4a6: spinlock_release at /home/bernhard/source/why2025-badge-firmware/components/esp_hw_support/include/spinlock.h:181
</pre>

=== Unanswered ===
* [3] Screen flickers sometimes. Is this a defect? I tried looking at the screen ribbon cable, it seems OK.
* [4] screen is not turning on at all.
* [7] Can not turn off badge while charging.
* [8] The antenna isn't connected yet. Can I use the device without damaging anything?
* [9] One battery holder has a big blob of epoxy where it should contact the battery. Is there a good way to remove it?
* [10] Badge updates apps after starting an app that isn't the updater
* [11] Sponsor screen replays (unskippable) after every flash
* [12] Double-tapping the power button doesn't shut down the badge
* [13] Where do we get the badge now that the event is over? The lines were huge or the stand was closed. Can we pay for shipping to get them later?
* [2] How to solder the antenna-connector? The center pin can't be reached.
* [14] Is it possible to insert an SD card without removing the daughter board (with cells installed)?
* [1] Some keys (the `w` key in my case) don't register. I've tried with the nametag app and with the new System Settings app, and it didn't work on either. [[User:Bytefighter|bytefighter]] ([[User_talk:Bytefighter|talk]]) 01:24, 14 August 2025 (CEST)

== Badge User Questions/Issues ==
=== Answered ===
* [1] Inside program “c64emu” v1 trying Shift+{number} prints the number to console and not the symbol. This behaviour works in “crackme” v3.
** Thank you for reporting this, I've fixed this and released a new version with improved keyboard handling (v2.0.1). --[[User:Wallaby|Wallaby]] ([[User talk:Wallaby|talk]]) 14:37, 11 August 2025 (CEST)
* [5] WHY2025 OTA updater is not reacting.
** => We are working on this. For now, don't touch it and instead just wait at least 30 seconds.
*** => This didn't work for me; I had to re-flash the firmware. [[User:Bytefighter|bytefighter]] ([[User_talk:Bytefighter|talk]]) 08:53, 13 August 2025 (CEST)
*** => Any update on this? "OTA" and "Hello" app don't do anything. Not even an error message. Is there a hidden Wifi settings menu or something for the "over the air" part? Maybe a USB-C to Ethernet dongle?
* [3] There is a stripe in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
*** I saw at least one device where the sticky tape area was '''under''' the front cover. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
* [2] There is a stamp HD3 in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
* [2] Could do one update, then three updates and then BadgeVMS Firmware Version 4. Now I a offered this update on every boot and can do nothing else, even though I have installed it already
** reboot fixes this.
* [3] My Badge is showing a yellow screen. Its starting with a blue screen and shows the Menu for a few seconds an then turns yellow. What does this indicate?
** The v5 firmware had this bug. Reflash with a newer to fix.
* [4] I’m finally home! How do I connect the badge to my local WiFi?
** Edit `wifi_config` in `badgevms/drivers/wifi.c`. Change `.ssid` to your network name. Directly below `.ssid` add a line with `.password = "your network password",`. Then build/flash the firmware `idf.py build flash`.
* [6] How to provide/configure networking for the device to presumably use the OTA app? Is there a FAT mountable config file or do USB-ethernet dongles work or sth? (having a Wifi with SSID "WHY2025-Open" doesn't work)
** as an ugly workaround, an open Wifi with the SSID "WHY2025-open" (the O not as a capital letter) works
=== Unanswered ===
* [4] OTA update screen appears on first boot, after pressing space bar, blue screen with nothing happening for over an hour.
** Have the same problem after first OTA update. Update started but the device stuck on bluescreen for an hour or so before I removed power. After flashing a new firmware using the [https://why-prog.heplaphon.com web updater] it works again (use the USB slot on the side, otherwise you get an error message "Your ESP C6 chip is unsupported"). [https://pastebin.com/VjMA5ZZA Logfiles] --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
*** No, it doesn't. It displayed the sponsors page once but returned to the bluescreen afterwards. [https://pastebin.com/cCKejKCk Logs from the side USB port]. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:18, 11 August 2025 (CEST)
*** Uploaded another log containing the complete first boot after flashing the new firmware: https://pastebin.com/3NiSRncL (edit: see below). Note the exception at the end: "Task 4 caused an unhandled exception, Cerberos will deal with it". After that, no new entries appear and the display stays blue. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:25, 11 August 2025 (CEST)
*** Was wrong about that again. There were more log entries while I wrote the previous comments. Here is the complete log: https://pastebin.com/KMQwhBPv --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:34, 11 August 2025 (CEST)
** Anyone managed to fix that errpr and getting the Bagde running again? --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 13:16, 13 August 2025 (CEST)
* [7] Blue screen. Nothing happening.
** => Not official answer: What helped for me was reflashing the badge via the flash station at the badge tent.
* [1] Cannot build the firmware from https://gitlab.com/why2025/team-badge/firmware/. Tried to build main and flashed_at_first_handout - both fail because of the following error: https://pastebin.com/H4xwPLhC
* [1] stuck at do_http(https://badge.why2025.org/api/v3/projects/why2025_firmware_ota_c6/rev4/files/version.txt) error: server response: '{"reason":"No app with slug 'why2025_firmware_ota_c6' and revision '4' found"}'

* [5] The badge is not detect on my mac when I connect it by side port:
** '''Don't''' use brew, it has been reported not to work.
** Follow these instructions: [[Badge/MacOS_Drivers]]
* [1] I can't flash the badge - it says the board is incompatible
** => Use the USB-C port on the side of the board, not the one on the bottom
* [1] The letter "a' is represented by a horizontal dash in the nametag app

== Badge Firmware Development related Questions/Issues ==
* [2] Flashing takes forever (>40 seconds) for a trivial application. Can I speed this up?
* [1] After installing OTA update, application updates AND System Update "BadgeVMS Firmware, Version 4, Main Badge Firmware" the system restarts showing System Updates => "Updates available 1" => "BadgeVMS Firmware, Version 4, Main Badge Firmware". Selecting it, installing it and autorstarting leads back to this same screen. I seem to be stuck in a loop of the update process.
** => Shut down your badge by double tapping the power button. Restart. You should now see the application WHY Application Launcher.
*** => But double-tapping the power button doesn't shut down the badge...

==BadgeHub related Questions/Issues==
* [2] How do I get apps from the BadgeHub onto the Badge? Is it possible without an SD card (I don't have one). I can build apps and flash the firmware, but I have no idea how to get pre-compiled ELFs on there.
** => If you have a SD card (if not, the mysteryhack village has a vending machine): Create the folder stucture ./BADGEVMS/APPS on there. In there, create a folder named like the badge hub project name. Download and put the .elf in there. Create a json file with the project name next to the folder and put the key/values for name, unique_identifier, version and binary_path in there. binary_path is just the full name of the .elf file.
*** => the mysteryhack village vending machine has been out of SD cards since day 0 or 1

Badge Issues

2025-08-13T23:24:39Z

Bytefighter: /* Unanswered */

== Please edit this page ==

'''Please edit this page to add your issue or increase the count
'''

The ''[number]'' in front of each question is the counter. Increase it if you have the same question.

== Badge Hardware Questions/Issues ==
=== Answered ===
* [1] After reflash and exiting the intial sponsors screen, the screen stays blue.
** => Reflash the badge using the web flasher. (https://why-prog.heplaphon.com/). Use the USB socket on the left side for flashing. After the update unplug/replug the USB. Make sure to use a good cable as the badge is power hungry.
* [2] How do I reset the badge on battery?
** => Applying usb power will reset the badge
* [4] Batteries ar being held firmly (maybe a bit too firmly) in place in the battery holder. How can I safely remove the batteries? What tool to use for this without damaging the batteries or the PCB?
** => Try gripping it with rubber gloves on.
* [3] The badge suddenly stopped working. Serial shows boot-loop with message <pre>Cannot connect to target. Error: TIMEOUT </pre>
** => Reseating the ESP daughterboard (fitted with a screw) helped here.
** => M.2 socket of ESP daughterboard can break off without being immediately visible. This also leads to this error. [https://chaos.social/@xro/115011118785473303 Re-soldering fixed it.]
Trace of boot-loop:
<pre>
./idf.py monitor
W (1098) fatfs-sd: SD card not mounted
E (1108) device: The device does not exist SD0
Cannot connect to target. Error: TIMEOUT
Check if the host and the target are properly connected.
E (4828) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
HINT: Please reboot the board and then try again
E (4828) sdio_wrapper: sdmmc_card_init failed
E (4828) H_SDIO_DRV: sdio card init failed
Crashing in ESP-IDF task
Guru Meditation Error: Core 1 panic'ed (Instruction access fault). Exception was unhandled.

--- Stack dump detected
Core 1 register dump:
MEPC : 0x00000000 RA : 0x00000000 SP : 0x4ff278c0 GP : 0x4ff18580
TP : 0x4ff278e0 T0 : 0x4ff0f4a6 T1 : 0x4ff120a8 T2 : 0xffffffff
--- 0x4ff0f4a6: spinlock_release at /home/bernhard/source/why2025-badge-firmware/components/esp_hw_support/include/spinlock.h:181
</pre>

=== Unanswered ===
* [3] Screen flickers sometimes. Is this a defect? I tried looking at the screen ribbon cable, it seems OK.
* [4] screen is not turning on at all.
* [7] Can not turn off badge while charging.
* [8] The antenna isn't connected yet. Can I use the device without damaging anything?
* [9] One battery holder has a big blob of epoxy where it should contact the battery. Is there a good way to remove it?
* [10] Badge updates apps after starting an app that isn't the updater
* [11] Sponsor screen replays (unskippable) after every flash
* [12] Double-tapping the power button doesn't shut down the badge
* [13] Where do we get the badge now that the event is over? The lines were huge or the stand was closed. Can we pay for shipping to get them later?
* [2] How to solder the antenna-connector? The center pin can't be reached.
* [14] Is it possible to insert an SD card without removing the daughter board (with cells installed)?
* [1] Some keys (the `w` key in my case) don't register. I've tried with the nametag app and with the new System Settings app, and it didn't work on either. [[User:Bytefighter|bytefighter]] ([[User_talk:Bytefighter|talk]]) 01:24, 14 August 2025 (CEST)

== Badge User Questions/Issues ==
=== Answered ===
* [1] Inside program “c64emu” v1 trying Shift+{number} prints the number to console and not the symbol. This behaviour works in “crackme” v3.
** Thank you for reporting this, I've fixed this and released a new version with improved keyboard handling (v2.0.1). --[[User:Wallaby|Wallaby]] ([[User talk:Wallaby|talk]]) 14:37, 11 August 2025 (CEST)
* [5] WHY2025 OTA updater is not reacting.
** => We are working on this. For now, don't touch it and instead just wait at least 30 seconds.
*** => This didn't work for me; I had to re-flash the firmware. [[User:Bytefighter|bytefighter]] ([[User_talk:Bytefighter|talk]]) 08:53, 13 August 2025 (CEST)
*** => Any update on this? "OTA" and "Hello" app don't do anything. Not even an error message. Is there a hidden Wifi settings menu or something for the "over the air" part? Maybe a USB-C to Ethernet dongle?
* [3] There is a stripe in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
*** I saw at least one device where the sticky tape area was '''under''' the front cover. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
* [2] There is a stamp HD3 in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
* [2] Could do one update, then three updates and then BadgeVMS Firmware Version 4. Now I a offered this update on every boot and can do nothing else, even though I have installed it already
** reboot fixes this.
* [3] My Badge is showing a yellow screen. Its starting with a blue screen and shows the Menu for a few seconds an then turns yellow. What does this indicate?
** The v5 firmware had this bug. Reflash with a newer to fix.
* [4] I’m finally home! How do I connect the badge to my local WiFi?
** Edit `wifi_config` in `badgevms/drivers/wifi.c`. Change `.ssid` to your network name. Directly below `.ssid` add a line with `.password = "your network password",`. Then build/flash the firmware `idf.py build flash`.
* [6] How to provide/configure networking for the device to presumably use the OTA app? Is there a FAT mountable config file or do USB-ethernet dongles work or sth? (having a Wifi with SSID "WHY2025-Open" doesn't work)
** as an ugly workaround, an open Wifi with the SSID "WHY2025-open" (the O not as a capital letter) works
=== Unanswered ===
* [4] OTA update screen appears on first boot, after pressing space bar, blue screen with nothing happening for over an hour.
** Have the same problem after first OTA update. Update started but the device stuck on bluescreen for an hour or so before I removed power. After flashing a new firmware using the [https://why-prog.heplaphon.com web updater] it works again (use the USB slot on the side, otherwise you get an error message "Your ESP C6 chip is unsupported"). [https://pastebin.com/VjMA5ZZA Logfiles] --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
*** No, it doesn't. It displayed the sponsors page once but returned to the bluescreen afterwards. [https://pastebin.com/cCKejKCk Logs from the side USB port]. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:18, 11 August 2025 (CEST)
*** Uploaded another log containing the complete first boot after flashing the new firmware: https://pastebin.com/3NiSRncL (edit: see below). Note the exception at the end: "Task 4 caused an unhandled exception, Cerberos will deal with it". After that, no new entries appear and the display stays blue. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:25, 11 August 2025 (CEST)
*** Was wrong about that again. There were more log entries while I wrote the previous comments. Here is the complete log: https://pastebin.com/KMQwhBPv --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:34, 11 August 2025 (CEST)
** Anyone managed to fix that errpr and getting the Bagde running again? --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 13:16, 13 August 2025 (CEST)
* [7] Blue screen. Nothing happening.
** => Not official answer: What helped for me was reflashing the badge via the flash station at the badge tent.
* [1] Cannot build the firmware from https://gitlab.com/why2025/team-badge/firmware/. Tried to build main and flashed_at_first_handout - both fail because of the following error: https://pastebin.com/H4xwPLhC
* [1] stuck at do_http(https://badge.why2025.org/api/v3/projects/why2025_firmware_ota_c6/rev4/files/version.txt) error: server response: '{"reason":"No app with slug 'why2025_firmware_ota_c6' and revision '4' found"}'
* [5] The badge is not detect on my mac when I connect it by side port:
** '''Don't''' use brew, it has been reported not to work.
** Follow these instructions: [[Badge/MacOS_Drivers]]
* [1] I can't flash the badge - it says the board is incompatible
** => Use the USB-C port on the side of the board, not the one on the bottom

== Badge Firmware Development related Questions/Issues ==
* [2] Flashing takes forever (>40 seconds) for a trivial application. Can I speed this up?
* [1] After installing OTA update, application updates AND System Update "BadgeVMS Firmware, Version 4, Main Badge Firmware" the system restarts showing System Updates => "Updates available 1" => "BadgeVMS Firmware, Version 4, Main Badge Firmware". Selecting it, installing it and autorstarting leads back to this same screen. I seem to be stuck in a loop of the update process.
** => Shut down your badge by double tapping the power button. Restart. You should now see the application WHY Application Launcher.
*** => But double-tapping the power button doesn't shut down the badge...

==BadgeHub related Questions/Issues==
* [2] How do I get apps from the BadgeHub onto the Badge? Is it possible without an SD card (I don't have one). I can build apps and flash the firmware, but I have no idea how to get pre-compiled ELFs on there.
** => If you have a SD card (if not, the mysteryhack village has a vending machine): Create the folder stucture ./BADGEVMS/APPS on there. In there, create a folder named like the badge hub project name. Download and put the .elf in there. Create a json file with the project name next to the folder and put the key/values for name, unique_identifier, version and binary_path in there. binary_path is just the full name of the .elf file.
*** => the mysteryhack village vending machine has been out of SD cards since day 0 or 1

Badge Issues

2025-08-13T06:54:04Z

Bytefighter: tons of issues on the badge :c

== Please edit this page ==

'''Please edit this page to add your issue or increase the count
'''

== Badge Hardware Questions/Issues ==
=== Answered ===
* [2] How do I reset the badge on battery?
** => Applying usb power will reset the badge
* [3 People have this question/issue] Batteries ar being held firmly (maybe a bit too firmly) in place in the battery holder. How can I safely remove the batteries? What tool to use for this without damaging the batteries or the PCB?
** => Try gripping it with rubber gloves on.
* [3 People have this question/issue] The badge suddenly stopped working. Serial shows boot-loop with message <pre>Cannot connect to target. Error: TIMEOUT </pre>
** => Reseating the ESP daughterboard (fitted with a screw) helped here.
** => M.2 socket of ESP daughterboard can break off without being immediately visible. This also leads to this error. [https://chaos.social/@xro/115011118785473303 Re-soldering fixed it.]
Trace of boot-loop:
<pre>
./idf.py monitor
W (1098) fatfs-sd: SD card not mounted
E (1108) device: The device does not exist SD0
Cannot connect to target. Error: TIMEOUT
Check if the host and the target are properly connected.
E (4828) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
HINT: Please reboot the board and then try again
E (4828) sdio_wrapper: sdmmc_card_init failed
E (4828) H_SDIO_DRV: sdio card init failed
Crashing in ESP-IDF task
Guru Meditation Error: Core 1 panic'ed (Instruction access fault). Exception was unhandled.

--- Stack dump detected
Core 1 register dump:
MEPC : 0x00000000 RA : 0x00000000 SP : 0x4ff278c0 GP : 0x4ff18580
TP : 0x4ff278e0 T0 : 0x4ff0f4a6 T1 : 0x4ff120a8 T2 : 0xffffffff
--- 0x4ff0f4a6: spinlock_release at /home/bernhard/source/why2025-badge-firmware/components/esp_hw_support/include/spinlock.h:181
</pre>

=== Unanswered ===
* [0 People have this question/issue] Add your question/issue here or increase the number.
* [1 People have this question/issue] After reflash and exiting the intial sponsors screen, the screen stays blue.
* [3 People have this question/issue] Screen flickers sometimes. Is this a defect? I tried looking at the screen ribbon cable, it seems OK.
* [4 People have this question/issue] screen is not turning on at all.
* [2 People have this question/issue] Can not turn off badge while charging.
* [1 People have this question/issue] The antenna isn't connected yet. Can I use the device without damaging anything?
* [1] One battery holder has a big blob of epoxy where it should contact the battery. Is there a good way to remove it?
* [1 People have this question/issue] Badge updates apps after starting an app that isn't the updater
* [1 People have this question/issue] Sponsor screen replays (unskippable) after every flash
* [1 People have this question/issue] Double-tapping the power button doesn't shut down the badge

== Badge User Questions/Issues ==
=== Answered ===
* [1 Person has this question/issue] Inside program “c64emu” v1 trying Shift+{number} prints the number to console and not the symbol. This behaviour works in “crackme” v3.
** Thank you for reporting this, I've fixed this and released a new version with improved keyboard handling (v2.0.1). --[[User:Wallaby|Wallaby]] ([[User talk:Wallaby|talk]]) 14:37, 11 August 2025 (CEST)
* [5 People have this issue] WHY2025 OTA updater is not reacting.
** => We are working on this. For now, don't touch it and instead just wait at least 30 seconds.
*** => This didn't work for me; I had to re-flash the firmware. [[User:Bytefighter|bytefighter]] ([[User_talk:Bytefighter|talk]]) 08:53, 13 August 2025 (CEST)
* [3 People have this question/issue] There is a stripe in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
*** I saw at least one device where the sticky tape area was '''under''' the front cover. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
* [2 People have this question/issue] There is a stamp HD3 in my screen.
** There is a protective cellophane sheet attached to the screen for protection against scratches and dirt. Remove the cellophane sheet by peeling it off. Start in the lower right corner. There should be some sticky tape area of 8x8mm you can use to start peeling it off.
* [2 People have this question/issue] Could do one update, then three updates and then BadgeVMS Firmware Version 4. Now I a offered this update on every boot and can do nothing else, even though I have installed it already
** reboot fixes this.
* [3 People have this question/issue] My Badge is showing a yellow screen. Its starting with a blue screen and shows the Menu for a few seconds an then turns yellow. What does this indicate?
** The v5 firmware had this bug. Reflash with a newer to fix.

=== Unanswered ===
* [0 People have this question/issue] Add your question/issue here or increase the number.
* [3 People have this question/issue] I’m finally home! How do I connect the badge to my local WiFi?
* [4 People have this question/issue] OTA update screen appears on first boot, after pressing space bar, blue screen with nothing happening for over an hour.
** Have the same problem after first OTA update. Update started but the device stuck on bluescreen for an hour or so before I removed power. After flashing a new firmware using the [https://why-prog.heplaphon.com web updater] it works again (use the USB slot on the side, otherwise you get an error message "Your ESP C6 chip is unsupported"). [https://pastebin.com/VjMA5ZZA Logfiles] --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:03, 11 August 2025 (CEST)
*** No, it doesn't. It displayed the sponsors page once but returned to the bluescreen afterwards. [https://pastebin.com/cCKejKCk Logs from the side USB port]. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:18, 11 August 2025 (CEST)
*** Uploaded another log containing the complete first boot after flashing the new firmware: https://pastebin.com/3NiSRncL (edit: see below). Note the exception at the end: "Task 4 caused an unhandled exception, Cerberos will deal with it". After that, no new entries appear and the display stays blue. --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:25, 11 August 2025 (CEST)
*** Was wrong about that again. There were more log entries while I wrote the previous comments. Here is the complete log: https://pastebin.com/KMQwhBPv --[[User:Cybso|Cybso]] ([[User talk:Cybso|talk]]) 00:34, 11 August 2025 (CEST)
* [7 People have this question/issue] Blue screen. Nothing happening.
** => Not official answer: What helped for me was reflashing the badge via the flash station at the badge tent.
* [1 Person has this question/issue] Cannot build the firmware from https://gitlab.com/why2025/team-badge/firmware/. Tried to build main and flashed_at_first_handout - both fail because of the following error: https://pastebin.com/H4xwPLhC
* [1 Person has this question/issue] stuck at do_http(https://badge.why2025.org/api/v3/projects/why2025_firmware_ota_c6/rev4/files/version.txt) error: server response: '{"reason":"No app with slug 'why2025_firmware_ota_c6' and revision '4' found"}'
* [5 People have this issue] The badge is not detect on my mac when I connect it by side port:
** '''Don't''' use brew, it has been reported not to work.
** Follow these instructions: [[Badge/MacOS_Drivers]]
* [1 Person has this issue] I can't flash the badge - it says the board is incompatible
** => Use the USB-C port on the side of the board, not the one on the bottom

== Badge Firmware Development related Questions/Issues ==
* [0 People have this question/issue] Add your question/issue here or increase the number.
* [2 Person has this question/issue] Flashing takes forever (>40 seconds) for a trivial application. Can I speed this up?

* [1 People have this question/issue] After installing OTA update, application updates AND System Update "BadgeVMS Firmware, Version 4, Main Badge Firmware" the system restarts showing System Updates => "Updates available 1" => "BadgeVMS Firmware, Version 4, Main Badge Firmware". Selecting it, installing it and autorstarting leads back to this same screen. I seem to be stuck in a loop of the update process.
** => Shut down your badge by double tapping the power button. Restart. You should now see the application WHY Application Launcher.
*** => But double-tapping the power button doesn't shut down the badge...

==BadgeHub related Questions/Issues==
* [0 People have this question/issue] Add your question/issue here or increase the number.
* [2 People have this Question] How do I get apps from the BadgeHub onto the Badge? Is it possible without an SD card (I don't have one). I can build apps and flash the firmware, but I have no idea how to get pre-compiled ELFs on there.
** => If you have a SD card (if not, the mysteryhack village has a vending machine): Create the folder stucture ./BADGEVMS/APPS on there. In there, create a folder named like the badge hub project name. Download and put the .elf in there. Create a json file with the project name next to the folder and put the key/values for name, unique_identifier, version and binary_path in there. binary_path is just the full name of the .elf file.
*** => the mysteryhack village vending machine has been out of SD cards since day 0 or 1

User:Bytefighter

2025-06-18T09:55:40Z

Bytefighter:

{{UserInfo
|Village=Village:ChaosFurs
|Languages=EN
|NickName={{PAGENAME}}
}}

User:Bytefighter

2025-06-18T09:53:34Z

Bytefighter: create user page

{{UserInfo
|NickName={{PAGENAME}}
|Languages=EN
|HackerSpace=
}}