07-29-2021, 08:10 PM
this happens with jumpdrive, the image can be corrupted or a write error may happen while flashing, the boot sectors are crucial for a successful booting, I would suggest you keep a bootable OS on the SD and from there you can download and flash the eMMC though you will have to remove the SD every time you boot or keep a separate SD for this purpose, I just pull the SD and leave it in the case, it is secured between the battery and the case