Question SONY XBR 900C issue?

[ERIC J]

I have a SONY xbr55x800C
that has been on a stand and working great for the last two years then out of nowhere with nothing being done to the set(set was not moved,bumped into,etc) it would not boot up and flashes a red 4 blink code.
I tried a factory reset with no luck.
I did get the set to work for a little over a week but as of today it is back to that 4 blink code?

 

[Daggeroth]

Here's a trouble shooting link from sony. https://www.sony.com.ph/electronics/support/articles/00153674 . I hope this helps.
If this doesn't solve it contact sony in your area.