I have a Hisense TV model number 50k390PAD. From last month it starts to pop up menu automatically
Select device menu automatically without even me touching the remote. And it some time switches the device from AV to HDMI2 or any other randomly. Please help me to solve this issue. The link in comments shows the real issue.
Televison & Video - Hisense
Answers & Comments
Touch pads of the control panel must be replaced
Main system control memory IC fault. Check and replace it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. 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 is better. This procedure will make it a hard reset. 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. If you wish to get some details; visit the site linked here.