Fon screen faded and went off itself

It could be a problem with the RAM, what I would do is switch it off open up the ram slot at the middle bottom of the screen and take out the RAM and then place it back into the imac and see if that sorts out the problem.

It means that a text massage did not send correctly.

Screen going blank is one of three things - Screen backlight failed
In which case you would see dim 'shadow images'
A simple connector failure- where by massaging the camera near the base the the case 'May' get it back in.
A Mainboard failure.

! & £ offer no repair solution
You may get lucky with 2.

The need to reboot your computer to get your monitor working places the blame totally in the computer. You have a virus, or the computer is overheating and shutting down for thermal reasons.
-CharlyV

I am having the same problem with my w850i, poweres up but nothing more than a blank screen? Any suggestions?

3230 try another battery

UR fons display belt also called display connector or display is gone first try to reset ur fon first switch off and turn it on now press menu button now press # then up button then select then down then select then select then press 0000 then select and done if it dont works try above steps

Blank white - suggests a dislodged connector These tend to be at the base of the screen gentle massaging and pressure may re establish it. Fuji Tech support team may help further

have u dropped ur fon? try if you can still recieve a call or a meassage, if so, your flex cable was faulty or cutted. but if you can't make a call if its just white screen your fon program might corrupted and need to be reprogrammed.

But that is the only way -its replacement time Nothing for you to fix