: Download all parts of the firmware (usually split into multiple .rar files). Once all parts are downloaded, extract them to get the single firmware file, typically named Update.pkg or Update.img . Prepare USB Drive : Use a USB 3.0 drive formatted to FAT32 .
The direct download link for the fourth part of the TCL L55C2US Download TCL L55C2US Firmware part04 rar
Press and on the TV (not the remote).
If your TV is still functional and connected to the internet, you can use these official methods: : Download all parts of the firmware (usually