BIOS UPDATE A10/ A13/ A16 XPS 15 9550 4K SCREEN TERRIBLE FLICKER

Yes, there is a way. You can just install the previous version of the BIOS, downloadable from

downloads.dell.com/.../xps-15-9550-laptop.html

The same. I updated yesterday all latest drivers. 
Have 4k 512GB.

It spots almost on all brightness levels.

Don't know what they are doing there. When latest version is worse than a previous one.

How they want to compete to Macbook Pro.

Could somebody from Dell chime in here? I also had to revert to 1.2.0 because of the flickering issue on 4k screens. 

And yes, we want this fixed as having this broken prevents further firmware or critical software updates dependent on it.

Thank you 

Could somebody from Dell chime in here? I also had to revert to 1.2.0 because of the flickering issue on 4k screens.  And yes, we want this fixed as having this broken prevents further firmware or critical software updates dependent on it. Thank you

I even sent a Dell rep on here a private message about this but no reply. Probably just ignored it.

Hello. Just wanted to add a +1 to this. I had no screen flicker issues before A10 and now I'm getting loads and the fan is much noisier.

Well done Dell.

+1. Also experiencing screen flicker after A10... what a joke. Non-stop little issues with this laptop, which is a big shame.

If you have the NVidia video card, more than likely it is related to the NVidia drivers.

I had bought a used Dell with NVidia display in it. It had Windows 7, which I replaced with Windows 8.1. Upon install finishing, Noticed a flicker. The flicker was even present during boot. I was assuming it had to be the BIOS since the screen was already flickering upon initial power up. However, once I updated to latest drivers from nVidia, the flickering went away.

Now I have installed Debian on it, the flickering is back with the public domain drivers, though not was bad as it was when I first put Windows 8.1 on it.  

If you have the NVidia video card, more than likely it is related to the NVidia drivers. I had bought a used Dell with NVidia display in it. It had Windows 7, which I replaced with Windows 8.1. Upon install finishing, Noticed a flicker. The flicker was even present during boot. I was assuming it had to be the BIOS since the screen was already flickering upon initial power up. However, once I updated to latest drivers from nVidia, the flickering went away. Now I have installed Debian on it, the flickering is back with the public domain drivers, though not was bad as it was when I first put Windows 8.1 on it.

perhaps for your laptop model but not the case in our XPS's.

Dell even addressed the issue in the BIOS changelog but as we know it made the problem worse. I've had numerous nvidia GPU driver updates since owning the machine and it doesn't solve the issue....why? Because the intel GPU is used by default on 'normal' tasks such as desktop display and general OS display. perhaps an intel conflict with something controlling the display through the BIOS...

Problem with intermittent display flickering unfortunately associated exclusively with updating the BIOS
When I was faced with this I also had a suspicion of incorrect work of the video driver from Nvidia but experience has shown that this is not the case
at least for the xps 9550 with 4k it so unfortunately

I can confirm that rolling back BIOS resolved my screen flickering. Has not flickered once in 6+ hrs since rolling back vs once every minute. I hope a new BIOS is released soon as on the old BIOS I now have my USB devices connected to my WD15 Dell Dock dropping out intermittently... Nothing but issues!

Same issue here on a 4K display XPS 15 (9550). Flashing back to UEFI version 1.2.0 works. UEFI version 1.2.10 has this bug. Please fix it for the next UEFI/BIOS version.

I thought I was going nuts.  Ordered a new XPS 15 last month.  Loved it... except for the screen flicker (which my wife's XPS 15 didn't have).  Contacted tech support.  After running various tests they sent me a new laptop.  Got the new machine and no flicker.  Great!  A few days ago I had a notification to update the bios (as well as the intel and nvidia display drivers).  Shortly thereafter I started experiencing screen flicker.  Not as bad as my original XPS 15 but was driving me nut.  Wasn't sure what caused it.  I disabled the intel display driver, rebooted, and the screen still flickered.  I enabled the intel driver, disabled the nvidia driver, rebooted, and the screen still flickered.  On a hunch I googled xps 15 bios update screen flickering and found this thread.  The sad thing is Dell support doesn't seem to be aware of this issue.  Otherwise they would have suggested rolling back the bios instead of shipped me a new machine.

This thread  should really get Dell's attention, it would be nice to get a fixed bios that works. I was about to buy Dell tb15 dock station, however now I know it would be waaaaaay too risky. Sad to see that Dell doesn't put enough attention to their releases.

+1 from. Also 4k model and also flicker on 1.2.1 A10

And 1.2.0 A06 works just fine