OpenWRT Boot issue

OpenWRT Forum members,

I recently purchased a Belkin RT3200 on eBay (the seller thought there was a power issue with it as the power LED would not come on, nor did it advertsise an SSID).

However, succeeding its arrival I connected a TTL/RS-232C level converter to it and saw that it was having an issue booting. I used a command like:
/mtk_uartboot -a -p bl2-for-mtk_uartboot.bin -f *uboot.fip && minicom -D /dev/ttyUSB3

to get it to boot up and selected "Boot Production System from Flash" and the firmware came up with perfection.

The version of the firmware thereupon the router is:
OpenWrt 23.05.3, r23809-234f1a2efa

At this point all I am trying to figure out is how I can configure the router so that it boots up directly into the firmware. Can anyone provide any guidance or advise as to how I might otherwise accomplish that?

I typed "reboot" from the serial console within Linux and thereafter when it boots, this is what I see on the console:

F0: 102B 0000
F6: 0000 0000
V0: 0000 0000 [0001]
00: 0000 0000
BP: 0400 0041 [0000]
G0: 1190 0000
T0: 0000 02D7 [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: [40000000] Software reset (reboot)
NOTICE: SPI-NAND: FM35Q1GA (128MB)
ERROR: BL2: Failed to load image id 3 (-2)

One additional note:
when I got the router to boot into the firmware I attempted to backup as follows:

mkdir /tmp/boot_backup
mount -t ubifs ubi0:boot_backup /tmp/boot_backup

I then scp'ed the mtd0-3 files off the router. Upon running strings on the mtd3 I saw my serial number and MAC addresses, does this mean I have all my calibration data and such even though the previous owner tried to install OpenWRT onto the router?

Thanks!
Stuart

https://openwrt.org/toh/linksys/e8450
Well this seem to be a very troubled device in general so what of this in the wiki have you or the previously owner already done?