11-21-2022, 07:31 AM
The answer to both questions is "no".
But if you can't boot, you won't be able to boot to USB, either.
You will need to re-flash your eMMC. Or disable or remove it and boot from micro-SD. But flashing the eMMC is the way to go. The easiest way is with an eMMC to USB adaptor; and by flashing the eMMC from a different computer.
You can reflash the eMMC from the PBP, but it's tricky.
If you have written to the SPI flash ROM, all the above is moot.
But if you can't boot, you won't be able to boot to USB, either.
You will need to re-flash your eMMC. Or disable or remove it and boot from micro-SD. But flashing the eMMC is the way to go. The easiest way is with an eMMC to USB adaptor; and by flashing the eMMC from a different computer.
You can reflash the eMMC from the PBP, but it's tricky.
If you have written to the SPI flash ROM, all the above is moot.