Corrupted firmware. A firmware update is necessary. Contact any service technician; or the authorized service center for Philips. It is a skilled work. If you wish to get some details; check the site linked here.
Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Before doing anything, try a hard reset to this set, and check.
There are two types of reset to TVs.
The first is simple to do; a Hard Reset; and the other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight; will be better. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option.
×