Need to be able to use the PCIE M.2 connector on this board so I had to update kernel to fix the “PCIe link training gen1 timeout” issue. After following instructions from https://www.96boards.org/documentation/consumer/rock/build/linux-kernel.md.html and rebooting, the box stopped responding. The blue LED doesn’t light up anymore and there is no HDMI signal. The board won’t boot from neither eMMC nor uSD.
The serial output shows NOTICE with BL31 information then garbage characters then the output stops altogether; the system looks to hang at that point.
The usual maskrom instructions never worked for this board: it would never show up in lsusb output no matter what combination of steps or USB-C cables/orientations I used. I checked the buttons electrically, they do make contact.
@hipboi Does the RK option “short the eMMC clock to GND” listed on the Rockchip wiki work for this SBC to force it into maskrom mode? The eMMC is KLMAG1JETD-B041 and I see what looks like 10 semi-exposed pads on 960’s PCB in near proximity of that eMMC chip. Do these correspond to the Dx/CLK/CMD/STRB eMMC lines? If so, which one is CLK?
Anything else I can try to save this board?