Nighthark X8 AC5300 - Several Blinking Lights (Not working at all)

Hello,

Thanks for all the ideas and responses.

I finally had the time to purchase a USB->Serial cable and try the TFTP route. However, for my surprise the problem seems to be a bit different than most similar posts in the foruns. Usually, the boot will look something like this in a normal router;

CFE for Foxconn Router R7800/R8500 version: v1.0.5
Build Date: Tue Jun 30 20:39:15 CST 2015
Init Arena
Init Devs.
Boot up from NAND flash...
Bootcode Boot partition size = 524288(0x80000)
DDR Clock: 800 MHz
Info: DDR frequency set from clkfreq=1400,*800*
et2: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 7.14.121 (r552363)
CPU type 0x0: 1400MHz
Tot mem: 524288 KBytes

Device eth0:  hwaddr A0-04-60-C4-7A-CC, ipaddr 192.168.1.1, mask 255.255.255.0
        gateway not set, nameserver not set
Checking crc...Loader:raw Filesys:raw Dev:nflash0.os File: OptionsSmiley Sadnull)
Loading: ..... 5470272 bytes read
Entry at 0x00008000
Closing network.
Starting program at 0x00008000
[    2.130000] console [ttyS0] enabled, bootconsole disabled
[    2.140000] serial8250.0: ttyS1 at MMIO 0x18000400 (irq = 117) is a 16550
[    2.150000] brd: module loaded
[    2.160000] loop: module loaded
[    2.160000] pflash: found no supported devices
[    2.160000] bcmsflash: found no supported devices
[    2.740000] Boot partition size = 524288(0x80000)
[    2.750000] lookup_nflash_rootfs_offset: offset = 0x200000
[    2.750000] nflash: squash filesystem with lzma found at block 32
[    2.760000] Creating 17 MTD partitions on "nflash":

...

Which then I could press the CTRL+C to get to the CFE terminal. However, mine is looping way before getting to the CTRL+C part, and the out is like this in eternal loop;

CFE for Foxconn Router R7800/R8500 version: v1.0.5
Build Date: Tue Jun 30 20:39:15 CST 2015
Init Arena
Init Devs.
Boot up from NAND flash...
Bootcode Boot partition size = 524288(0x80000)
DDR Clock: 400 MHz
Info: DDR frequency set from clkfreq=1400,*800*
Warning: invalid DDR setting of 800 MHz ignored. DDR frequency will be set to 400 MHz.
Warning: invalid CPU setting of 1400 MHz ignored. armclock frequency will be set to 1000 MHz.
et2: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 7.14.121 (r552363)
CPU type 0x0: 1000MHz
Tot mem: 524288 KBytes

Committing NVRAM...done
Waiting for reset button release...donDigital core power voltage set to 1.05V
Decompressing...done

CFE for Foxconn Router R7800/R8500 version: v1.0.5
Build Date: Tue Jun 30 20:39:15 CST 2015
Init Arena
Init Devs.
Boot up from NAND flash...
Bootcode Boot partition size = 524288(0x80000)
DDR Clock: 400 MHz
Info: DDR frequency set from clkfreq=1400,*800*
Warning: invalid DDR setting of 800 MHz ignored. DDR frequency will be set to 400 MHz.
Warning: invalid CPU setting of 1400 MHz ignored. armclock frequency will be set to 1000 MHz.
et2: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 7.14.121 (r552363)
CPU type 0x0: 1000MHz
Tot mem: 524288 KBytes

Committing NVRAM...done
Waiting for reset button release...donDigital core power voltage set to 1.05V
Decompressing...done

My guess after seeing this was that the reset button was stuck or had a short, but checking with a multimeter revealed that the button is actully working properly.

Have someone saw something similar to this and was able to recover it?

Thank you once again.