i have a TP-Link 1043ND HW-Vers. 3 with OpenWrt, which worked well for several weeks.
But yesterday it was not reachable anymore via WLAN and Ethernet. So i installed a Console-Cable to the serial port to watch booting.
This is the output:
U-Boot 1.1.4 (May 14 2015 - 19:51:26)
ap135 - Scorpion 1.0DRAM:
sri
Scorpion 1.0
ath_ddr_initial_config(178): (16bit) ddr2 init
tap = 0x00000003
Tap (low, high) = (0xaa55aa55, 0x0)
Tap values = (0x8, 0x8, 0x8, 0x8)
4 MB
There is no further progress and the Console does not react on any input.
So my Question: Is the device bricked or is there any chance to get it working again?
TP-Link is known for cutting the tx line (or pulling it down to GND), maybe check the PCB close to it.
…that said, the tl-wdr3600 in working condition tends to sell for 10-15 EUR on the used markets, maybe a better option (unless you want to step up towards wifi5/ wifi6, which isn't necessarily much more expensive).