Better: Firmware Tcl L40s6500

Be cautious when manual flashing. Ensure the firmware matches your specific model (L40S6500) and region to avoid permanent hardware damage. How to update the software on an Android TV - TCL Support

Firmware updates regularly include patches for internal Wi-Fi and Bluetooth modules. This dramatically reduces accidental disconnections, minimizes audio delay when using Bluetooth soundbars, and increases wireless network stability. Method 1: The Fast Route (Over-The-Air Network Update) firmware tcl l40s6500 better

Extract the file and copy the .pkg or .img file to the root directory of a FAT32-formatted USB drive. Plug the USB drive into your TV. Be cautious when manual flashing