I'm here to report the exact same issue. I have two RT3200s and one of them refused to boot after a normal power-down.
The buttons on the unit have no effect on the boot output.
Serial access shows the identical errors/output:
F0: 102B 0000
F6: 0000 0000
V0: 0000 0000 [0001]
00: 0000 0000
BP: 0400 0041 [0000]
G0: 1190 0000
T0: 0000 02D4 [000F]
Jump to BL
NOTICE: BL2: v2.9(release):OpenWrt v2023-07-24-00ac6db3-2 (mt7622-snand-1ddr)
NOTICE: BL2: Built : 21:45:35, Oct 9 2023
NOTICE: CPU: MT7622
NOTICE: WDT: Cold boot
NOTICE: WDT: disabled
NOTICE: SPI-NAND: FM35Q1GA (128MB)
ERROR: BL2: Failed to load image id 5 (-2)
This sounds like a more widespread problem?
I have a CH341A and a few other programmers (STLink, Segger, USB Blaster), and I'll try to document the recovery process if I'm successful.
Is there anything that can be done to mitigate this issue, or verify flash manually after install?
Guess I'll use the "good ol" Archer C7v2 again for now 