Typical firmware strings for the 50EP660 look like: V8-R851T02-LF1Vxxx . The "xxx" represents the build number (e.g., V620, V628). Note this down before searching for an update.
A power loss during manual firmware update can brick your TV. Use an uninterruptible power supply (UPS) if possible. Firmware TCL 50EP660
If you can tell me or what specific issue you are experiencing , I can help you find more specific resources or troubleshoot further. Share public link Typical firmware strings for the 50EP660 look like:
: Users frequently report that later system updates make the Android interface "painfully slow" or buggy. Inconsistent Apps A power loss during manual firmware update can brick your TV
Look at the string (e.g., V8-R51MTO1-LF1VXXX ). The last three digits indicate your version number. Method 1: Automatic Over-The-Air (OTA) Updates
Check the TCL Global Support page by entering your serial number.
Turn on your TCL 50EP660 and plug the USB drive into the USB 2.0 port.