Hi everyone, how are you? I hope well...
I'm Brazilian and here in my country I'm working with recovery of routers and communication equipment in general - An interesting technical assistance branch and Thanks to God, I've had a lot of service!
I would like your help if possible in the issue of the main board of a TP-Link WDR4300 router, received from a customer.
This router has corrupted fimrware. Recovering it would be no problem, but the client damaged the trail of the board where the TX pin of the serial port is, using a soldering iron with a very high temperature, as can be seen in the photo below.
So, I come to you, noble friends, to ask if anyone could tell me where this pin (TX) is connected, because if it is in an easily accessible location, I could get around this situation by making an external jumper. I decided to ask here, because searching the internet, I couldn't find the circuit board for this router (yet).
I also take the opportunity to ask: If not through the serial port, would there be another way to recover this router?
I know I can copy the entire contents of flash memory from an operational 4300, however what worries me is the data from the ART partition, the MAC-ADDRESS which will be the same as the "good" router, right? And without serial port access, I wouldn't be able to access the U-Boot prompt to change these MACs with the "setmac" command, correct?
Thanks to everyone who somehow tries to help me and sorry for my english!