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 

[AMPK]

Connect this USB and restart it can update the firmware

[BhanuAgarwal]

Can you please elaborate your issue?
You gave contradictory statements.

[NikRK]

yes, please add screenshot of the issues

[Bulent Zenuni]

 Samsung S10 Lite not suporting 

 

[Dhruvv_k]

I'm facing the same issue , when I plug my phone in to charge it keeps blipping the " the connected usb device is not supported " notification and keeps vibrating my phone , when I connect it to pc it charges fine without problem. Help me.

[sohel750]

same happen with me..its working on pc but not on wall charger..is yiur problem solved ? how u do it..?

[Yasuo102]

did u manage to solve it ? if yes how ?

[cs_member9]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please perform the below mentioned steps to resolve the issue:

Open samsung member app > Get Help > Interactive check > Choose the phone hardware you want to check and optimize performance(eg. ports).

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[Manuel18]

Same problem

when I plug my phone in to charge it keeps blipping the " the connected usb device is not supported " notification and keeps vibrating my phone , when I connect it to pc it charges fine without problem. Help me.