Archer c7 v5 | Issue After Trying revert back to TP-Link Firmware | Checking via serial

Hi Team
I was on my router working withe the last one openwrt version. Well so I wanted to revert back to tp-link firmware and it didn't work. Just "the turn on light" is working as you can see in the first video. I tried with the reset botton plus power on button and it didn't work either So for this reason I connected via serial to router and I got this as you can see in the second video



Is there any way to get back my router? Thanks in advance

I could fix and get back to live my router. When I wanted to revert to back to TP-link via TFTP I bricked my router because I Plugged a wrong or incomplete ethernet cable. In the video I explain every details and show the whole proccess