proc cleanup_usb file log_msg "Removing firmware file from USB..." file delete $file
Depending on your model and current TV state, there are two primary ways to initiate the update: Plug the USB drive into the TV's USB port.
Performing a TCL software update via USB is the most powerful tool for troubleshooting and maintaining your TV. While it seems technical, following the steps above—identifying your exact chassis, formatting to FAT32, and using the recovery method correctly—turns a scary process into a 10-minute fix.
set actual_md5 [lindex $result 0] if $actual_md5 eq $expected_md5 log_msg "Checksum OK" return 1 else log_msg "Checksum mismatch: expected $expected_md5, got $actual_md5" return 0
if ![check_firmware_exists $fw_path] exit 1
