Quote:
Originally Posted by AHB100
Hi all,
I've managed to get my Note Air 5C into a difficult state and could use help from anyone who's been further into this device than I have.
I Followed the Note Air 4C EDL + Magisk procedure. Loader confirmed working (`0000000000000000_bdaf51b59ba21d8a_fhprg.bin`, HWID `0013f0e1` — same SM_BITRA as the 4C). Successfully extracted boot_a and boot_b via EDL, patched both with Magisk, flashed back. Device failed to boot - AVB verification rejecting the patched images on both slots.
During recovery I issued `fastboot reboot fastboot` which wrote `boot-fastboot` to the BCB. Device now permanently enters fastbootd on every boot. Boox's fastbootd has flash and erase disabled (`unknown command`), so I can't restore the stock images or clear the misc partition through software.
- Boox logo, does not boot
- USB: VID 18D1 / PID D00D (fastbootd confirmed via WSL + usbipd)
- `fastboot getvar unlocked` → `no`
- `fastboot flash` / `fastboot erase` → `unknown command`
- `fastboot flashing unlock` → `unknown command` in fastbootd, hung in ABL (OEM unlock not pre-enabled)
- Stock boot images extracted before patching, ready to flash
I think I need hardware EDL access to clear the BCB (misc partition) and restore boot_a/boot_b. I don't have the test point location for the 5C PCB - does anyone have it, or know another way to get back into EDL mode from this state?
Also, I used the same EDL loader as the Note Air 4C and Palma 2. HWID `0013f0e1`, loader `0000000000000000_bdaf51b59ba21d8a_fhprg.bin`. This wasn't confirmed anywhere before this session as far as I can find.
Thanks
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Don't know if this will help you recover from your current problem, but "fastboot reboot fastboot" should be "fastboot reboot bootloader".