Can't install OpenWrt on my Linksys/Belkin EA8500

Found this EA8500 at a electronics recycle store and snap it up since it has better spec than my other routers/access points. It boots fine to the latest stock Linksys firmware and of course I bought it for OpenWrt. Unfortunately this one didn't have the serial header and was filled it. Took me a while to finally get on the console/solder on headers but I must have ruined it along the way. It won't boot after I tried uploading OpenWrt and can't go back to stock firmware. Also tried various DD-WRT and old factory firmware.

Can someone help look at this boot log and confirm what I'm seeing?

(IPQ) # reset
resetting ...

Resetting with watch dog!


U-Boot 2012.07 [Standard IPQ806X.LN,r40331] (Oct 12 2015 - 17:00:55)

CBT U-Boot ver: 1.0.12

smem ram ptable found: ver: 0 len: 5
DRAM:  491 MiB
NAND:  SF: Unsupported manufacturer 00
ipq_spi: SPI Flash not found (bus/cs/speed/mode) = (0/0/48000000/0)
128 MiB
MMC:   
PCI0 Link Intialized
PCI1 Link Intialized
In:    serial
Out:   serial
Err:   serial
cdp: get part failed for 0:HLOS
Net:   MAC1 addr:0:3:7f:ba:db:1
athrs17_reg_init: complete
athrs17_vlan_config ...done
S17c init  done
MAC2 addr:0:3:7f:ba:db:2
eth0
Warning: eth0 MAC addresses don't match:
Address in SROM is         00:03:7f:ba:db:01
Address in environment is  00:06:3b:01:41:00
, eth1

Updating boot_count ... done

Hit any key to stop autoboot:  0 
MMC Device 0 not found
MMC Device 0 not found

Loading from nand0, offset 0x3780000
NAND read from offset 3780000 failed -74
** Read error

Write Reg: 0x00000660: Oldval = 0x00140020 Newval = 0x0014007e
Write Reg: 0x0000066c: Oldval = 0x0014005c Newval = 0x0014007d
Write Reg: 0x00000678: Oldval = 0x0014005a Newval = 0x0014007b
Write Reg: 0x00000684: Oldval = 0x00140056 Newval = 0x00140077
Write Reg: 0x00000690: Oldval = 0x0014004e Newval = 0x0014006f
Write Reg: 0x0000069c: Oldval = 0x00140001 Newval = 0x0014005f
Write Reg: 0x000006a8: Oldval = 0x0014001e Newval = 0x0014003f
Write Reg: 0x00000420: Oldval = 0x00020001 Newval = 0x00010001
Write Reg: 0x00000428: Oldval = 0x00010001 Newval = 0x00010001
Write Reg: 0x00000430: Oldval = 0x00010001 Newval = 0x00010001
Write Reg: 0x00000438: Oldval = 0x00010001 Newval = 0x00010001
Write Reg: 0x00000440: Oldval = 0x00010001 Newval = 0x00010001
Write Reg: 0x00000448: Oldval = 0x00020001 Newval = 0x00010001
Write Reg: 0x00000450: Oldval = 0x00010001 Newval = 0x00010001
(IPQ) # printenv
altkern=3780000
auto_recovery=yes
autostart=yes
baudrate=115200
boot_part=2
boot_part_ready=2
boot_ver=1.0.12
bootargs=console=ttyHSL1,115200n8 init=/sbin/init rootfstype=squashfs root=31:16
bootcmd=bootipq
bootdelay=2
ethact=eth0
ethaddr=00:06:3b:01:41:00
flashimg=tftp $loadaddr $image;nand erase $prikern $imgsize;nand write $loadaddr $prikern $filesize
flashimg2=tftp $loadaddr $image;nand erase $altkern $imgsize;nand write $loadaddr $altkern $filesize
fsbootargs=ubi.mtd=rootfs root=mtd:ubi_rootfs rootfstype=squashfs
image=FW_EA8500_1.1.4.169978_prod.img
imgsize=2800000
ipaddr=192.168.1.1
loadaddr=42000000
machid=1260
netmask=255.255.255.0
partbootargs=console=ttyHSL1,115200n8 init=/sbin/init rootfstype=squashfs root=31:14
partbootargs2=console=ttyHSL1,115200n8 init=/sbin/init rootfstype=squashfs root=31:16
prikern=f80000
serverip=192.168.1.2
stderr=serial
stdin=serial
stdout=serial

Environment size: 954/262140 bytes