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i have iphone 5s first this give problem with battery like phone goes off on 20-30% battery remaining but now goes off in night i also try at 100% battery but off in morning and also heat pls give me solution
Sounds like the battery is at fault. I suggest replacing it with a quality replacement battery from iFixit. You can get a replacement battery from here: iPhone 5s Battery You will also want the battery adhesive strips as the old ones can’t be reused: iPhone 5s/5c/SE (1st Gen) Battery Adhesive Strips Guide to replace the battery: How to replace the battery in your iPhone 5s