Hw Spec
Soc: Amlogic S912-H, (S192 with dolby, DTS)
Mem: 2G Ddr3
Emmc: 16G
4K HDMi
AV out
ethernet ??
Wifi/Bt ??
USB port *1
5V DC-IN
IR receiver
Reset hole
OS: Ali YunOS
Steps
1, connect UART from mainboard test points, (I can only find M17's UART port)
2, build u-boot follow q200.rst in u-boot doc, use VIM2 config and use VIM2 fip blobs (hope that works)
3, build Arm64 debian bookworm with default debian kernel to USB driver, and config system.
4, falsh u-boot to USB driver
5, connect to device with UART, hope to stop at u-boot cmdline, and erase emmc. if failed, find other way to erase, maybe Amlogic flash tool.
6, instert USB driver, and reboot device
potaintial issues:
can't find UART port on mainboard
VIM2 mainline Uboot can't boot M16S
device does not support boot from USB.
No schematics for next step dev.