Manually Erase SPI Flash
tip
This tutorial is only applicable to systems with kernel >= 5.10
If Linux Can Boot
-
Open a terminal and run
rsetup
-
Select "System Maintenance"

- Select "Erase SPI Bootloader"

- After selecting "OK", press the spacebar to select "rock-4a", "rock-4b", "rock-4a+", "rock-4b+", and "rock-4se"
