S21 can't connect to PC via USB. Please help!!

[killerscript]

 

A month ago I've updated my S21.

Since then, I'm unable to transfer data from my mobile to PC, AND can't connect my phone to Android Auto in my car multimedia

I tried different cables, ALL original ones but still same error:

[Elam95]

3 minutes ago, killerscript said:

 

A month ago I've updated my S21.

Since then, I'm unable to transfer data from my mobile to PC, AND can't connect my phone to Android Auto in my car multimedia

I tried different cables, ALL original ones but still same error:

I've been out of the android eco system for a while, but if you suspect that the update is the cause behind it, is it possible to revert it?

[Shimejii]

Does the phone charge properly? Usually when this code happens theres something in the port that needs to be cleaned out.

 

Doing a quick Search, This is a MASSIVE issue on the s21 lineup of phones.

 

Removing "Smart Switch" and "Smart Things" app should help this issue as well. Remember to restart phone after uninstall

 

[Lurking]

All my older Samsung and P6 pro were finicky. Had to plug in multiple times and connection dropped off.

 

A new USB cable and using my USB hub (in my monitor) works perfectly. So try that as well. With this setup the very same phone works 100% perfectly. Also try USB 2.0, 3.0 or C if available. 

[killerscript]

13 hours ago, Shimejii said:

Does the phone charge properly? Usually when this code happens theres something in the port that needs to be cleaned out.

 

Doing a quick Search, This is a MASSIVE issue on the s21 lineup of phones.

 

Removing "Smart Switch" and "Smart Things" app should help this issue as well. Remember to restart phone after uninstall

 

Yes my phone charges properly, that's why I'm confusing

Will try the Smart Swith and Smart Things idea, May I ask for referenses of where it says there's an issue with those apps?

[Shimejii]

8 hours ago, killerscript said:

Yes my phone charges properly, that's why I'm confusing

Will try the Smart Swith and Smart Things idea, May I ask for referenses of where it says there's an issue with those apps?

Quick search on the issue popped up with those 2 being problematic. Can always try it and see. It was under one of the first 2-3 tabs for searching on this issue