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Original topic:

A71 says connected USB device isn't supported, but nothing is connected

(Topic created on: 07-09-2020 02:53 PM)
Elf337
Apprentice
Options
Galaxy A Series

My brand new (~3 months old) Galaxy A71 has recently started showing an error message: "The connected USB device isn't supported."

The main problem with this is that there is no USB device connected, the USB port has nothing plugged into it!

If I restart the phone whilst the charger is connected, the message doesn't appear until I disconnect the charger.

 

Since the message has appeared, I am unable to connect the phone to my car to use Android Auto.

 

I have tried a factory reset, it did not solve the problem.

 

Any suggestions greatly appreciated!

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3 REPLIES 3
Deano89
Navigator
Options
Galaxy A Series
clean the port with a soft brush in case there is something shorting the pins
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Elf337
Apprentice
Options
Galaxy A Series

Hmm... annoyed with myself for not thinking to try that before posting. Given it a go and early signs are promising. I'll give it 24 hours and if the message doesn't come back I'll accept this solution, thanks!

Elf337
Apprentice
Options
Galaxy A Series

Unfortunately it was short lived. As soon as I connected the phone to my car again, the problem came back. Since it's still under 12 months old, might have to look at getting a repair through the retailer...

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