download it here
Link
Extract this zip-file to the root directory of an empty USB stick (FAT32) and rename it, if it's necessary, to “upgrade_loader.pkg”
If the TV-set is in STANDBY, then switch the power ON via the RC
Unplug the mains-cable to get the power OFF
First insert the USB stick, then insert the mains-cable to power up the TV-set
The TV-set should auto force the software upgrade, screen OSD should show "software upgrade in progress..."
Wait for the screen going black and then showing the channel and USB content browser
Unplug the USB stick and switch OFF the TV-set
Switch it back ON and go to the homepage
Select "TV settings" > "General settings" > "Re-install TV" and finally "Yes" to confirm
Now the issue should be resolved
