Some boxes with unmodified bls might accept reboot update on shell and boot via the sdcard that way, worked for me on both coreelec and now worked with armbian (I formatted via os and installed termux and typed su, then reboot update), way too useful for boxes with no buttons (yes, they exist)

I am trtying to keep my pcduino 3 nano alive. It has been working perfectly under a debian bullseye distro from Johan Gunarsson for 4 years and now I can't get the OTG to work under any release (bullseye, bookworm or trixie) I have explored many avenues, but even a plain manual setup of g_mass_storage doesn't work in a workable way. The drive appears in Windows Explorer after several minutes, and any copy or delete to that gadget drive takes ages (3+ minutes for a 12kb file) before it fails or succeeds silently. I am looking for a forum where pcduino users can help each other. Thank you, Gaetano.

@shexplorer Control +c should have worked after: U-Boot SPL board init U-Boot SPL 2017.09_armbian-2017.09-S93fe-Pe5fd-Hbdb5-Va5b2-Bbf55-R448a (Nov 06 2025 - 16:35:49) SPL Hotkey: ctrl+c Make sure that USB TX is well connected to RX and try to spam it. Or use another terminal emulator, like putty instead of screen on a bash terminal. Maybe control is being intercepted.

Hi, first of all thank you for your support. Unfortunately, I could not get it to work. I just don't want to boot anything I store on the SD card. Also, the CTRL+C method won't work. I have to reset the board manually after every try and when powering on while holding CTRL+C the only thing I see in the console is "SPL Hotkey: ctrl+c" as additional line. Maybe the only option is to get into Mask Mode and flash the emmc over USB. But the onboard button won't work to enable it at boot. Maybe I can short some pads but without labeling I dont know which. I attached some output logs and photos of the board. boot_with_armbian_sd_insert.log boot_with_ctrl_c.txt boot_without_sd_insert.log

@Harleyyyu my 2 cents thought ..... We are talking about a 10 dollars soc . Is already a great milestone it is " just working" Anyway.. If you achieve any good result let's us know