Samsung S21 is not detected by PC

[Hip]

Hey guys

 

I had this problem before and somehow my computer was able to see my S21 after a while and now once again I can not use it anymore.

When I plug it into my PC the phone gets charged but nothing more.

Is there any setting I have to turn on?
I have turned on debugging in dev options but nothing works for me

thanks in advance!

[CommanderAlex]

Have you tried other USB ports?? 

[Hip]

Just now, CommanderAlex said:

Have you tried other USB ports?? 

Yes.

[CommanderAlex]

1 minute ago, Hip said:

Yes.

Perhaps there is a setting in the phone for the USB port on what to do if the phone is plugged into a computer/data port? 

[Hip]

1 minute ago, CommanderAlex said:

Perhaps there is a setting in the phone for the USB port on what to do if the phone is plugged into a computer/data port? 

I think there is one. Before I was asked every time when I plugged it in what to do, charge or transfer files. Now it just charges.

[CommanderAlex]

Just now, Hip said:

I think there is one. Before I was asked every time when I plugged it in what to do, charge or transfer files. Now it just charges.

Yeah, that notification when you plug it in should ask you whether you want to charge it or select file transfer. 

 

Also, does you computer have one of those fast charging apps? Sometimes, it will disable data transfer for fast charging instead. 

[ethan308666]

you may need to install the driver manually https://developer.samsung.com/mobile/android-usb-driver.html 

[Hip]

Just now, CommanderAlex said:

Yeah, that notification when you plug it in should ask you whether you want to charge it or select file transfer. 

 

Also, does you computer have one of those fast charging apps? Sometimes, it will disable data transfer for fast charging instead. 

I am not sure what a fast charging App is

I dont think I have one

[ethan308666]

and you need to make sure the device is in file transfer and not in just charging 

[CommanderAlex]

Just now, Hip said:

I am not sure what a fast charging App is

I dont think I have one

Something like MSI Super Charger if you have a custom PC. 

[Hip]

2 minutes ago, CommanderAlex said:

Something like MSI Super Charger if you have a custom PC. 

Okay, I dont have this.

 

3 minutes ago, ethan308666 said:

and you need to make sure the device is in file transfer and not in just charging 

But how to change it when no message pops up?

[ethan308666]

and if you have developer setting enabled you should see a setting to change it from charging to usb file transfer 

[ethan308666]

the setting will be called "select usb configuration"

[ethan308666]

and or is your cable just meant for charging. If you have the og charger cable for your phone use that you might have better luck and or go to the store and buy one that can do data transfer 

[Levent]

Jeez, everyone here is beating around the bush.

If your phone is also not recognized when you plug it into other computers, or doesnt fast charge using the cable you use to connect to your computer:

1. Cable is messed up.
2. USB port on your phone is messed up.
3. Your phone has other motherboard related problems.

If your phone is able to use QC and is recognized on other computers using the same cable:

1. USB port on your PC is messed up.
2. USB controller or the driver is.

If your phone doesnt get recognized with different cables on your pc, on other computers, and also doesnt fast charge (you have to check the charging voltage using a usb "multimeter"):

1. USB port on your phone is messed up.
2. Your phones motherboard is messed up.

[Hip]

3 hours ago, Levent said:

Jeez, everyone here is beating around the bush.

If your phone is also not recognized when you plug it into other computers, or doesnt fast charge using the cable you use to connect to your computer:

1. Cable is messed up.
2. USB port on your phone is messed up.
3. Your phone has other motherboard related problems.

If your phone is able to use QC and is recognized on other computers using the same cable:

1. USB port on your PC is messed up.
2. USB controller or the driver is.

If your phone doesnt get recognized with different cables on your pc, on other computers, and also doesnt fast charge (you have to check the charging voltage using a usb "multimeter"):

1. USB port on your phone is messed up.
2. Your phones motherboard is messed up.

Can you tell me where I could find official samsung drivers for the phone (for windows 10 64 bit)? Thanks!

[Hip]

4 hours ago, ethan308666 said:

the setting will be called "select usb configuration"

It is selected that way and still does nothing but charge the phone.

[Levent]

1 hour ago, Hip said:

Can you tell me where I could find official samsung drivers for the phone (for windows 10 64 bit)? Thanks!

You dont have to install drivers for your phone to be detected. Driver I said there were for USB controller, which is extremely unlikely to be broken. Try the other things first.

[ethan308666]

19 hours ago, Hip said:

It is selected that way and still does nothing but charge the phone.

it seems your cable might be the problem