K770i Blinking display - hw error or I need display driver?

Hi guys,

my k770i started blinking the display as shown in the video during the charging process. Since then I could not fix thix. I flashed the latest fw with customization, nothing helped. Then I searched for display drivers, but was unable to find any for 770i.

Is it a hardware problem or sw?

thank you for any suggestion

http://www.youtube.com/watch?v=JTUwi...ature=youtu.be

It's a hardware fault I'm afraid.