Hold the physical power button on the TV for about until the upgrade process starts automatically. EEPROM/NAND Flash Dump :
: For standard software updates (rather than full memory dumps), use the TCL Support Page or the Software Upgrade portal . Standard Installation Methods USB Update (Standard) : Download MS08B1 MAD2LG Backup Dump part1 rar
: This repository contains several versions of the dump, including: TCL LED49D2930-40-MS08B1-MAD2LG .rar (171.9 MB) . LED49D2930 MT29F4G08ABADAWP 40-MS08B1-MAD2LG.7z (164 MB) . Hold the physical power button on the TV
To download the backup dump or firmware, you can find specific files often hosted on technician forums or community repositories. These files are typically used for repairing TV mainboards like the 40-MS08B1-MAD2LG commonly found in TCL or Thomson LED TVs. Available Download Resources LED49D2930 MT29F4G08ABADAWP 40-MS08B1-MAD2LG
Download the official software and copy it to a FAT32-formatted USB drive. Insert the drive into the TV's USB port.
You can find the relevant firmware files on these platforms: