Broke my R5C board via misadventure (short circuit between the case and the underside of it while outside of case, don't do that... put it in cardboard or something if you have to maybe), where can I buy a replacement board, I have no need for another case?

RTC0 and RTC1 are different addresses. You want the one that starts with H as the one you use, the other Rockchip specific RTC is the 2017 one. Re the battery, you might want to find a smaller battery or wiggle it well. Be very careful to not make a short circuit on the underside of the board, my R5...

With openwrt and the rndis package and prerequisites installed, and friendly wrt, I had a good result with a usb android phone put into permanent tether mode in developer options. I am very curious about M2 4G options that work on debian/ubuntu/wrt. I haven't tried any usb modems as I don't have any...

Hi there, I have a broken microsd slot after failure to remove an sd-card during disassembly to install a Thinkpad RTC clock battery into the R5C. It worked for a little while but while trying to disable auto-login, I broke my debian install, and it looks like USB to eMMC flash is not working for me...