Screen issues

[Maxvd]

After i update one ui 6.1 my screen going black and coming again and yesterday i saw green line.

[Piper123]

Hey there and welcome to the Forum.

You haven't specified the device other than a foldable so unable to advise if in warranty or not (also are you in the UK?).

[Maxvd]

The model i have is galaxy flip 4 and i bought this on uk

[Piper123]

Was it bought direct from Samsung or another retailer?

[Maxvd]

I bought from ee

[AndrewL]

@Maxvd: Is your screen going black while accessing a certain app or feature, or is it random? If the green line is still visible, then please open the Phone app > Dial *#0*# into the Keypad > Select Red, Green and Blue from the series of grey tiles. Is the line visible in any of these tests? 

If the problem persists, please reach out to our Support Team by following the link below, and an advisor will be able to assist you further. 

https://www.samsung.com/uk/support/contact/

[Maxvd]

Yes , the black screen is coming randomly, and the green line is not showing now. It only showed one time, for now 🤞

[BandOfBrothers]

@Maxvd I'd advise going back to ee as they supplied the phone so as the merchant they have a Duty of Care to look after you.

That said a Samsung Service Centre can assess your phone too. 

[Maxvd]

I don't know if they do that for free

[runju]

Hi, my flip 4 is also having same issues, no damage of any kind or drop.

It turning off and on randomly, i think this is some calibration issue of magnet sensor which dectects that phone is in flip mode and turns off the main display.