Hi, I have a CM3 SODIMM V1.2 16GB with a Waveshare Compute Module PoE IO Board I cannot get the bootloader to download. The RKDevTool (using Windows 10) detects the device in maskrom mode, but always returns “download boot fail”. I’ve tried the 1.06, 1.10, and 1.12 bin files; RKDevTool v2.81, 2.…

Got it working, it seems that the CM3S has to have been booted at least once without USB slave plugged in, after a power on without that cable on, then a reboot into maskrom mode, could successfully download the bootloader.

CM3 SODIMM Bootloader download fail

ROCK 3 Series CM3

reukiodo January 11, 2024, 12:53am 5

I finally got it recognized and successfully installed a debian image!