3 
4 Why are my iPhone 7 making hissing noises?
My iPhone 7 rang, and there's a loud hissing noise that really scared me. What's wrong with that? And how can I fix the problem? Thank you!
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1个回答
Where is the hissing noise coming from. If it's not coming from the speaker, then it could be coming from your battery. If the battery is punctured or faulty then the phone is extremely dangerous. Get it analysed by a professional. If it's coming from the internal or external speaker then it's probably a faulty component or aerial.
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The battery worked well. It's really weird. Do not clear if it was from where as others have reported, the CPU?
