Firstly, after done with OpenWRT reflashing, backup your current setting of OpenWRT box. Assuming you already performed the firmware upgrade. The following will assist you to configure it to be
Tag: openwrt
re-flashing TP-LINK TL-WR1043ND router with OpenWRTre-flashing TP-LINK TL-WR1043ND router with OpenWRT
Just for my curiosity, I just bought a cheap TP-Link WR1043ND from Digital Mall in Petaling Jaya. I did a quick search on Openwrt.org page to check if this model