How to restore the firmware of all-in-one for micro:bit to factory firmware?
All-in-one kit for micro:bit:
To restore the factory firmware for this device, please contact the micro:bit manufacturer/company. You can also refer to the following two links:
https://support.microbit.org/support/solutions/articles/19000106820-reset-the-micro-bit#oob
https://microbit.org/get-started/user-guide/meet-the-microbit-program/
