If somebody have 9550 and 4K screen on it - here is my request for help http://forum.notebookreview.com/threads/dell-xps-15-skylake-9550-owners-lounge.783377/page-391#post-10665553

I found a way to dump screen firmware from working machine - but i need somebody with working machine and 4K screen to make dump. I hope i will be able to restore my screen with such dump.

If it will work - i can even donate some money as my "thank you" as my laptop is critical for me

As Clint Eastwood already said, there are two kind of people in the world : those who have backups, and those who are in need for one ;-)

That being said, you may find help in this thread (originaly an XPS 9360 thread) : maybe someone with a 9550 will accept to help you.

EDIT : it may help, here is official tool for 9550 http://www.dell.com/support/home/fr/fr/frdhs1/drivers/driversdetails?driverId=MTKPJ

This tool - is actually my problem. I did flash accidently FHD version of firmware. And this package, as i found later, doesn't have QHD version of firmware. I can find firmware for any variations of XPS, except 9550/9560. That's why i need real backup. I think, backup from 9560 may also work

I believe finding someone with a 9550 is your only luck.

Because you don't know what type of screen you have (I think you didn't bother verify screen EDID before flashing) we cannot know which firmware you need.

If Dell have sold 9550 with different QHD screens models, your problem then may be bigger than you think because finding a user with a 9550 may not help you if it's XPS was not build with same screen as yours.

@Someone with a 9550 willing to provide a firmware extract?

@Anonymous: support should be able to provide firmware file from a 9550.

good news!!!

Now find a colorimeter and calibrate your screen ;-)

Yeah, i did find already my EDID dump, and found already where it sits in screen firmware. So first i will try to restore my original data. But making proper calibration is anyway in my todo list :) Tnx a lot to everybody

Ok, i got my screen fixed. One good guy sent me firmware dump. Now my screen works fine (just little bit not natural colors, but i will play with EDID later - i have my old one saved)

The same here. I accidently flashed my screen firmware... :Crying:

Could anybody send me a backup file for my XPS 9360? 

I have the same problem on 9360, my laptop screen is black but external monitor works. How can I re-flash firmware for my built-in display. Thanks.