: The screen may stay black or show a progress bar. Do not turn off the power during this time. The process usually takes 3–7 minutes, after which the TV should restart automatically. Alternative: Network Update

: Often named upgrade_loader.pkg or MstarUpgrade.bin depending on the chipset.

(and its variants like the LEO50FAIN) often requires navigating community forums or technical repositories, as manufacturers rarely host older files on their public websites. Most users seeking this file are looking for a way to fix boot loops or "restart" issues.

If you have successfully sourced the .rar file, follow these steps to install it: