How to downgrade M31s to out of the box Android version

[Rajaswini]

Hello Guys,

My Samsung Galaxy M31s (128 GB) is restarting abruptly after installing the firmware updates. After installing 1 update in April 2023, it started restarting while using WhatsApp (has ~25 GB data). 

Hence I installed all the updates, still didn't resolve the issue. 

Then I disabled auto restart in "General Management", and disabled auto restart in "Battery and Device Care" -> "Automation". Still didn't resolve.

I wiped cache partition, still didn't resolve.

Then I reduced the internal memory to upto 50%, Still didn't resolve. 

I don't want to factory reset my phone. 

Can anyone please help on what else I can do to fix this frequent restarting problem with M31s?

I am thinking to mostly downgrade my Android version to out of the box one. But how to do it?

Will it wipe out internal storage?

[TheFastestIndian]

Factory reset or visit the nearest Samsung service center and get it checked. You have done all other options

[Rajaswini]

Okay. Thank you

[TheFastestIndian]

Factory reset so that if any malicious software is installed then that will be cleaned. There can be other reasons too

[TheFastestIndian]

Downgrade is not a solution to everything bro, other troubleshooting needs to be done

[Ash00]

R u using android 12 or android 13?

[Rajaswini]

Android 12

[Ash00]

Unfortunately there is no official downgrade option.
Have you visited service center?

[Rajaswini]

Yet to visit the service center. I am sure they will recommend doing the software reset. And I will surely have to pay them. Any idea how much they will charge for this issue? I suppose this is just a Software issue, as the phone was functioning perfectly fine before the update.

[Ash00]

For payment It depends issue
U can check in Samsung website for spare parts price