If your TV is connected to the internet, you can check for official updates without a USB:

Updates often trigger a factory reset, erasing all settings and signed-in accounts. Verify Model: Ensure the software is exactly for the to avoid hardware incompatibility. Manual Installation Process

Downloading and installing software for the requires using the correct firmware files, typically in .rar or .zip format, to ensure device stability. For official and safe downloads, it is highly recommended to visit the TCL Support Page or contact their technical team directly to request the specific software version for your model. ⚠️ Safety Warning

Navigate to > System/Device Preferences > About > System Update .

on the TV (not the remote).

If you have obtained the software in a .rar format, follow these steps to perform a manual USB update: : Use a USB drive with at least 4GB of space.