Fix Your Stuff Community Store

Repair and disassembly information for the Samsung Galaxy S21 5G Android smartphone, announced and released in January 2021.

60 Questions View all

Options

s21 5g wifi problem

Hello everyone
i got a new motherboard for my s21 5G
after I installed it I noticed that bluetooth is not working correctly ( turning off on its own)
so I opened the phone again and I noticed that I made a big mistake since I placed the mob under the side of the camera and almost bent the board.
Anyway after correcting Bluetooth is now flawless but now every time I do something that causes a small amount of heat like gaming or youtube short for 30 cause wifi to turn off if the phone is too hot wifi will refuse to turn on until it cools down.
am not sure where the wifi IC on this board could anyone help me?
G991U
the board was replaced because it was locked.

Answer this question I have this problem too

Is this a good question?

Yes No
Score 0
1 Comment

@coliotte any change over the last 6 month or still the same issue? Is this " where the wifi IC" still the main concern. Can you post some GOOD pictures of your motherboard ( front and back) with your QUESTION? Adding images to an existing question

Does your phone give you any kind of error message that it is to hot etc? It might be an issues with a thermal sensor that cut off your Wifi. Your phone has no issue with Bluetooth during that time?

by

Add a comment

1 Answer

Filter by:
Most Helpful Newest Oldest
Most Helpful Answer

Options

You damaged the board by not fitting it correctly. Some solder joints have cracked and when the board heats up they separate causing the issue you describe. Any bending of a circuit board is a big no no.

Was this answer helpful?

Yes No
Score 1

1 Comment:

You didn't actually help or answer my question though, you just repeated what I wrote in a way.

by

Add a comment

Add your answer

Kayl Snow will be eternally grateful.
View Statistics:

Past 24 Hours: 1

Past 7 Days: 2

Past 30 Days: 17

All Time: 264