If your TV is still functional enough to access the boot sequence, you can attempt a local update: to FAT32.
(2.3 MB) — Standard flash dump for the L40D2900 model. Download FLASH DUMP TCL L40D2900 rar
: Unpack the .rar file and copy the .bin or Update.img file to the root directory of the USB drive. Initiate Update : Power off the TV and insert the USB drive. If your TV is still functional enough to
Because TCL’s website does not always provide public download links for these specific bin files, it is recommended to contact the TCL after-sales team if the community files do not work. They can often provide a direct link to the correct software based on your serial number. Initiate Update : Power off the TV and insert the USB drive
(2.3 MB) — Firmware specifically matched to the TP.MS1306.PB775 board.
Press and hold the on the TV (not the remote).