: Right-click the downloaded .rar file and select Extract Here .

: Try a different USB port or a smaller USB drive (under 16GB).

: Ensure the TV won't lose power during the update. 📥 Step 1: Download & Prepare

: Do not turn off the TV. It will usually reboot automatically once the bar reaches 100%. ⚠️ Troubleshooting

While holding the button, plug the power cord back into the wall.

Press and hold the on the TV panel (not the remote).

: Look for a file named MstarUpgrade.bin or allupgrade_msd338_4G_1G.bin . Copy this file directly to the root directory of your USB drive (not inside any folders). 📺 Step 2: Installation Process Power Off : Turn off the TV and unplug it from the wall.