ANNOYING Samsung Galaxy S7 Call Problem

Hi all,

My girlfriend has a Samsung Galaxy S7 which she got on contract with Vodafone roughly 6 months ago. For the past couple of months she has been having problems when she makes or receives calls. It can sometimes be okay for over 30 minutes and other times not even 5. When on a call it will suddenly start making almost alien noises or as if it was just dropped under water, like a scrambling sound and then the call will drop. She can make calls immediately after it happens but it will...

ANNOYING Samsung Galaxy S7 Call Problem

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