connected USB device is not supported , but there was CHARGING problem. help

[Samsung_I4OLR3Z]

HELLO DEAR ,

I have a very big trouble in my Samsung m40 device.

When I connect my usb type-c charger cable then there was no problem.but When I just turn off my cable then it's says that "the connected USB device isn't support.

AND AFTER THAT, there was no connected car but it always shows that notification  and also vibrate my phone ..in notification settings g in android system there is  a option which name is alerts  ,  I just can minimise the notification what is always says that 

"The connected usb device isn't supported.BUT IT DOESN'T HAVE ANY CHARGING PROBLEM.

BUT IT ALWAYS SHOWS ME THAT.. 

PLEASE TELL ME WHAT WILL I DO ?

I AM REALLY REALLY IN A VERY BIG TROUBLE FOR THIS MATTER.

PLEASE HELP ME

THANK YOU.

DIPRO 

[sruthi952092]

when i am connected to charger it is showing the prlbm ur USB is not supported whats happening

[Cln1119]

Same here.

Plz help.

[AarP]

Hi, Did anyone find the solution of "The connected USB device isn't supported." error? I lost the original headphones of Samsung S20, and I am getting this error whenever I tried to connect any other headphones. I've no issues in charging with the original wire + charger. I tried headphones of different brands, tried restarting and clearing cache, etc. nothing worked.

[KeshavSamsung]

hello I just bought a type to headphone jack and it is coming the usb device isn't supported pls help

[T1ND41]

Am having the same problem trying to connect my phone to the aux in the car 

[r3gis_85]

Hi mate. I have got this same issue with 2 Samsung s10e phones. Try just clean USB at phone using soft brush and your problem will be gone. 

Good luck mate

[Smokeythephone]

Same solution worked with me. 

[2129]

Same problem which others are facing I have a very big trouble in my Samsung A50s device.

When I connect my usb type-c charger cable then there was no problem.but When I just turn off my cable then it's says that "the connected USB device isn't support.

AND AFTER THAT, there was no connected car but it always shows that notification  and also vibrate my phone ..in notification settings g in android system there is  a option which name is alerts  ,  I just can minimise the notification what is always says that 


"The connected usb device isn't supported.BUT IT DOESN'T HAVE ANY CHARGING PROBLEM.

BUT IT ALWAYS SHOWS ME THAT.. 

PLEASE TELL ME WHAT WILL I DO ?

I AM REALLY REALLY IN A VERY BIG TROUBLE FOR THIS MATTER.

PLEASE HELP ME

[MukeshA]

My samsung m31s also not Charged with the samsung charger which were working fine earlier, able to charge wireless headphone with same charger, on mobile getting the message connected device is not supported, although I am able to charge mobile via laptop. Anyone able to resolve this issue, please update, thanks in advance for any help.

[skgoel]

Same problem