Kira - Multiple issues flashing the firmware about controller

[haata]

The firmware should be the same each time.
Sometimes the LED controller can get confused depending on how the keyboard was put into flash mode (if you press the button on the back of the keyboard, for example, it's not possible to do a clean reset of the LED controller before jumping to the bootloader). Unfortunately this is a limitation of the LED driver chip used on this keyboard.
One solution is to unplug and replug the keyboard after flashing the firmware. Another option that sometimes works is to press Fn+Shift+Esc (if you still have that KLL keymapping set), this will attempt to reset the LED state.

[mbarszcz-pcb]

This happens to me a lot on the Kira even in 2023. Especially when I have a static animation configured as the startup animation, editing keys on layer one seems to break the LEDs even after disconnecting and reconnecting the USB cable. It happens both with the flash button, and with control shift escape flash combo. Rolling back to a previous version seems to help, and sometimes modifying the static animation or playing games unsetting and resetting the startup animation helps as well. The LEDs should not stop working randomly when the only change you make is a key assignment 😡