<alertbox> WARNING: This document may contain errors which may result in damage to your router. USE AT YOUR OWN RISK. </alertbox>

The easiest method to flash TP-Link routers is with the “Firmware upgrade” tool in the original TP-Link firmware (or within Gargoyle to upgrade). Alternate methods can be found at OpenWRT

The TP-Link TL-WR1043ND is a very popular Gargoyle router due price and hardware feature set.

Go to the Download page and select
Download: Firmware images
Architecture: Atheros AR71XX
Branch: 1.6 (stable)
Version: 1.6.2

To replace the original TP-LINK firmware select the factory.bin download.

TP-WR1043ND-V1.X gargoyle_1.6.2-ar71xx-tl-wr1043nd-v1-squashfs-factory.bin OpenWRT
TP-WR1043ND-V2.X gargoyle_1.6.2-ar71xx-tl-wr1043nd-v2-squashfs-factory.bin OpenWRT
TP-WDR3600-V1.X gargoyle_1.6.2-ar71xx-tl-wdr3600-v1-squashfs-factory.bin OpenWRT

To upgrade Gargoyle or OpenWRT firmware select the sysupgrade.bin download.

Open the original TP-Link configuration.

Select “System Tools” » “Firmware Upgrade”

Select

gargoyle_1.3.14-ar71xx-tl-wr1043nd-v1-squashfs-factory.bin

file then click “upgrade”

If you get the error message please choose a file to upgrade, it's because the firmware filename is too long. Rename the firemware filename to gargoyle.bin and upload it again.

Wait about 5 minutes then you should be able to connect to 192.168.1.1

Do not unplug the power supply during upgrade.

If after 5 minutes 192.168.1.1 is unresponsive first reboot your PC and try again. If after 20 minutes 192.168.1.1 is unresponsive you may reboot both PC and router.

The hardest part to reverting back to the original firmware is finding a suitable file. You can not use the firmware from TP-Link without a file modification.

Luckily somebody has done the work for us

wr1043nv1_en_3_9_17-sysupgrade.zip