NOTE: manually re-flashing the firmware image does not void your device warranty.
If you chose to flash the firmware onto your own SD card (instead of requesting a replacement from us), please follow the steps below:
1. Download the Felik firmware. NOTE: This may be a slightly older version than what your device originally shipped with, but it will prompt you for a software update once the device boots up.
2. Download the Etcher app. NOTE: You can also use other tools, such as Apple Pi Baker, etc.
3. Insert the SD card into your computer and flash the disk image.
You can then follow these instructions to replace the SD card.