Samsung update spoiled S8 sensors

[AjitBharat]

Brought S8 from the middle east. Relocated it to India.

Was getting Regular Samsung Updates OTA.
July 1st got my update and after this Almost all of my sensors have stopped working
i.e. Proximity / Ambient Light / Compass / IRIS / GPS etc etc
What works is Finger Print , Bluetooth , Wifi , Camera and my Phone .
Service Center says, NO WARRANTY and said My Motherboard is gone.

How does a Samsung Update screw up this phone so much?

I still am not sure that its a Motherboard problem.

Kindly help / suggest etc before I send this device to the Middle East.

 

[Rukbat]

Re: S8 update messed up my sensors

Reflash a Middle Eastern ROM of the version that worked or earlier, and see if that fixes it. If it doesn't, Samsung may be right. If it does, check your baseband (write it down now, before you flash anything) against the one a Middle Eastern phone should have. You may have gotten an Indian update and that could cause problems.

 

[AjitBharat]

Re: S8 update messed up my sensors

Hi , Attached is a summary of my phone.
Where can I get these ROM's
What are the procedures ? I have a Smart Switch but I am sure, you are not asking me to do it that way. So what are the procedures and will I loose warranty ?