Your iPhone is like you.Sometimes it’s in trouble and needs professional help. To be honest, it happens rarely and in 5 years of using my Apple devices it never happened.
If it just coughs …
You’ll need a computer for this surgical procedure. If you don’t have a computer, well, you don’t have a computer but you can borrow one from a friend not living in the Post-PC-Era or go to an Apple Retail Store or Apple Authorized Service Provider for help.
One last thing …
Don’t apply methods you learned from your grandmother e.g. leg compress, alcohol (I mean for sterilization), heavy sweater, or improved cooling. It’s likely that you’ll lose the warranty and Apple Care professionals will become crazy.
Thanks for 📖 .