: Ensure the file is in the root folder of the USB drive and not hidden inside another folder. Verify that the file name has not been changed.
: Press and hold the physical power button located on the bottom or back of the TV.
Once you have downloaded the correct zip file from TCL: Tcl Software Update Usb
unless the specific instructions on the TCL download page explicitly tell you to do so. For most TCL models, the TV requires the raw, unextracted .zip or .bin file.
Once your TCL TV completes the update and boots back into the home screen, perform these final steps to ensure system stability: : Ensure the file is in the root
How to Update Your TCL TV Software Using a USB Drive: A Complete Step-by-Step Guide
TCL firmware is region and model-specific. Using the wrong file can "brick" your TV. Once you have downloaded the correct zip file
The TV will scan the USB drive and display a 12-digit code on the screen.
set md5_file "$fw_path.md5" if [file exists $md5_file] set fp [open $md5_file r] set expected_md5 [string trim [read $fp]] close $fp if ![verify_checksum $fw_path $expected_md5] exit 1
Not every Tcl TV is connected to the internet. For businesses using Tcl displays as digital signage or users who prefer a strictly offline viewing experience, the USB port is the only mechanism to ensure the firmware remains current and secure.
Older or degrading flash drives can corrupt data during transfer. Try using a newer USB 2.0 or USB 3.0 drive from a reputable manufacturer. The TV Restarts and Nothing Changes
