on the TV (not the remote) and plug it in.
Do you have a (like RT809F or CH341A) or are you using USB ? Download for TL-SG1218MPE V5.60 - TP-Link on the TV (not the remote) and plug it in
Frequently hosts firmware for universal Chinese boards like this one. ⚡ How to Install (USB Method) on the TV (not the remote) and plug it in
Since this is a generic board, there is no single "official" website. You must download it from specialized technician forums. Elektrotanya on the TV (not the remote) and plug it in
A popular site for TV repair professionals. You may need to pass a short technical quiz to register and download.