I am quite new to this, so I guess I could need some help:
I got a TL-WR1043ND V3 with the firmware Version: "OpenWrt Chaos Calmer 15.05.1 / LuCI 15.05-149-g0d8bbd2 Release (git-15.363.78009-956be55)" and would like to upload the up to date firmware "openwrt-19.07.6-ath79-generic-tplink_tl-wr1043nd-v3-squashfs-sysupgrade.bin" by using the LuCI interface. Keep Settings is deactivated.
By pressing "Flash image..." I receive the failure message: "The uploaded image file does not contain a supported format. Make sure that you choose the generic image format for your platform." and it does not proceed to the checksum page.
I recognized that on Status Overview page the listed Model is a "TP-Link TL-WR1043N/ND v2" the type label on the back of the router clearly states "V3.0".
Any help is appreciated!