RK3399 bricked after connecting M.2

cdslashetc

I have a Mac so have to use Windows VM then connect the USB to the VM. After booting with M.2 SSD, the blue light no longer comes on and I can't get the board into recovery mode even after removing M.2. I can get into MaskRom mode by shorting the jumper as shown, but shows "Download failed" when I try to flash.

I'm hoping these more detailed instructions for MarsBoard will provide some clues--NOT the jumper though that is different--but explains how to flash only certain partition by check/uncheck boxes on the first tab. It may be necessary to press what they call "Restore" button after entering Maskrom (Recovery?) then may be able to flash it.

http://www.hotmcu.com/wiki/Flash ... g_The_Rockchip_Tool

http://www.hotmcu.com/wiki/Unbrick,_fix_NAND_on_the_marsboard

Would be interested to know if there is a way to boot from SD or other device instead of NAND or to flash via serial.

isle

Hi ,did you try to flash the whole firmware but not the only  certain partition with the MaskRom mode?