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.
: 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. Download FLASH DUMP TCL L40D2900 rar
Press and hold the on the TV (not the remote). Because TCL’s website does not always provide public
If your TV is still functional enough to access the boot sequence, you can attempt a local update: to FAT32. Initiate Update : Power off the TV and insert the USB drive
While holding the button, plug the TV back in or power it on. Continue holding for about until the upgrade screen appears. The process takes approximately 4 minutes to complete. Official Support Channels