APX Mode (USB Recovery Mode "RCM")
Last updated
Last updated
APX Mode (NVIDIA USB Recovery Mode) can be used to run Fusee Gelee or to use Nvidia tools to flash the hardware. https://forum.xda-developers.com/showpost.php?p=77286176&postcount=85
Note - you will need a USB3 port on your development computer.
Power off the SurfaceRT or RT2 (not sleep mode!)
When the device is shut off, plug in a USB type A into the Surface, and a USB type A (or type C depending on your development device) into your development computer.
Hold VOL-UP; Press PWR and release it. Release VOL-UP if dmesg -Tw
shows:
Once connected in APX mode, you can use NVidia tools or a precompiled Fusee Gelee on your device. Nvflash v2.6 - https://docs.toradex.com/103464-nvfl...ry-toolset.zip NvFlash tool for getting uid - https://web.archive.org/web/20160318...ools-win32.zip
Connect USB - A-to-A cable Write 0x00000002 to 0x7000E450 <- sets bit in PMC-register to indicate to boot to RCM Write 0x00000010 to 0x7000E400 <- reboot This should force reset in RCM Mode
Boot UEFI Shell as normal. use this startup.nsh