Failed installation on Asus RT-AX53U

Installing and Using OpenWrt
23

I do have a theory about this.
We didn't yet prove that the bootloader of this device is capable to run the 2nd Kernel partition if it can't boot the first one, that just might be the case here.
If there's something broken with the 22.03 builds it will (theoretically) boot the 2nd partition that OpenWrt doesn't currently touch, so you have the official firmware intact on it, which the bootloader boots.
I will try today to flash that specific build and see what's going on via serial, and maybe try to trash the OpenWrt partition to see what will the device do.
LE: yup, just checked. If it can't boot the first partition (Kernel, I've trashed it on purpose) it will check the 2nd partition (Kernel2) and if that's ok, it will copy it to Kernel. Log:

Hit any key to stop autoboot:  0

  *** U-Boot Boot Menu ***

     1. Startup system (Default)
     2. Upgrade firmware
     3. Upgrade bootloader
     4. Upgrade bootloader (advanced mode)
     5. Load image
     0. U-Boot console


  Press UP/DOWN to move, ENTER to select
Reading from 0x1e0000, size 0x100000
Succeeded

RT-AX53U bootloader version: 1.0.0.0
Reading from 0x1e0000, size 0x100000
Succeeded
MAC Address: FC:34:97:0C:A0:60
Reading from 0x1e0000, size 0x40000
Succeeded
Check Factory's EEPROM successfully! (r = 16)
Reading from 0x2e0000, size 0x40000
Succeeded
Check Factory2's EEPROM successfully! (r = 16)
Reading from 0x3e0000, size 0x2000
Succeeded
Reading from 0x3e0000, size 0x3f
Succeeded
Bad TRX magic.
Reading from 0x35e0000, size 0x2000
Succeeded
Reading from 0x35e0000, size 0x29c86f8
Succeeded
   Image Name:
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    43812536 Bytes = 41.8 MiB
   Load Address: 81001000
   Entry Point:  81001000
   Verifying Checksum ... OK

## 1st FW damaged; 2nd FW good ...
Erasing from 0x3e0000, size 0x29c86f8 ...
Succeeded
Writing to 0x3e0000, size 0x29c86f8
Succeeded

## Fix 1st FW and boot from 2st FW ...
## Loading kernel from FIT Image at 83000040 ...

But I did flash 22.03.2 without any issues, and without a serial console I can't imagine why yours doesn't like OpenWrt.

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