R7000P boot loop - Can't Access CFE in Putty

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clemsonteg
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R7000P boot loop - Can't Access CFE in Putty

I have a R7000P router and I came home one day last week to find the lights flashing and that it is stuck in some type of boot loop. 

I've read information on it possibly being bricked, so I ordered a USB serial cable:

https://www.amazon.com/gp/product/B07R8BQYW1

I've disassembled the router, connected the serial cable, downloaded putty, and entered all of the settings following the guides. When I power up the router, nothing ever shows in the putty window, just the green cursor. I've tried swapping the TX and RX lines, updating the driver, and pressing CTL+C and nothing ever happens. 

Am I missing a step, or is the router beyond repair? Is there something else I can try?

clemsonteg
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So I got it to connect with

So I got it to connect with Putty, but I still can't get CFE. Here is the information I see:

Digital core power voltage set to 0.9375V
Decompressing...done
CFE for Foxconn Router R7000PLUS version: v1.0.5
Build Date: Wed Jan 24 22:20:51 CST 2018
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=1000,*533*
Warning: invalid DDR setting of 533 MHz ignored. DDR frequency will be set to 400 MHz.
Warning: invalid CPU setting of 1000 MHz ignored. armclock frequency will be set to 800 MHz.
et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 7.14.121 (r552363)
CPU type 0x0: 800MHz
Tot mem: 262144 KBytes

Committing NVRAM...done
Waiting for reset button release...donDigital core power voltage set to 0.9375V
Decompressing...done
CFE for Foxconn Router R7000PLUS version: v1.0.5
Build Date: Wed Jan 24 22:20:51 CST 2018
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=1000,*533*
Warning: invalid DDR setting of 533 MHz ignored. DDR frequency will be set to 400 MHz.
Warning: invalid CPU setting of 1000 MHz ignored. armclock frequency will be set to 800 MHz.
et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 7.14.121 (r552363)
CPU type 0x0: 800MHz
Tot mem: 262144 KBytes

Committing NVRAM...done
Waiting for reset button release...