Before beginning, ensure your USB drive is . This is non-negotiable; TCL TVs will not recognize other formats. You should also "safely eject" the drive from your computer before removing it.
Ensure the USB is formatted to FAT32, not NTFS or exFAT.
Practical tips
Here's a story about a user who recently updated their TCL 55C2US firmware:
Press the (gear icon) button on your remote control. tcl 55c2us firmware update work
Ensure the TV is securely connected to your home network via or an Ethernet cable .
TCL servers will reject update requests if your TV's internal clock does not match the server clock. Go to . Enable Automatic Date & Time (Use network-provided time). Before beginning, ensure your USB drive is
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