Insert the USB drive into any USB port on the TV. Plug the TV power cord back in.
To understand why firmware makes a massive difference, we must first look at what powers the TP.MT5522.PC821: tpmt5522pc821 firmware better
Check the sticker on the back of the metal LCD screen assembly itself (e.g., LSC550FN11). The firmware must match the exact panel model to ensure the correct voltage and LVDS signals are delivered. Insert the USB drive into any USB port on the TV
: Once the indicator light starts flashing rapidly or an "Upgrading" progress bar appears on the screen, release the power button. Completion : release the power button. Completion :