@Liverpool20 You are right and I guess ethernet is the best option for Firmware upgrade

@Liverpool20 thank you for the reply. Tried with this and the router is back again. This is the third router I'm fixing due to firmware break, not sure what exactly is going wrong during the upgrade.

Hi, I am trying to fix my friend's TP-Link Archer C6(US) V3.20 router which is currently bricked after a firmware update gone wrong. I am looking for the firmware file on the TP-Link US site and...