Battery
My phones keeps shutting and it’s iPhone 7plus, the battery degraded and I need help to grade it back
iPhone 7 Plus, iOS 14
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Top-ranking reply
Make sure Apple do the Battery Repair to avoid other damage.
I just had them do mine via the mail and it took 3 working days. You can see additional service information within the following article:
Get your iPhone, iPad, or iPod touch ready for service - Apple Support
