From Apple iPhone 6 and 6S to the latest
iPhone 7, quality problems are constant. Apple has announced an official repair
program for sudden power-offs that have been flagged as a problem on iPhone 6
According to Apple's policy, it will
replace the battery of the iPhone 6S, produced between September and October
2015. You can visit Apple's homepage to find the service provider near you.
You can find further informations [here]
It will link to Apple official Website
However, iPhone 6S is not the only product
affected. iPhone 6 and iPhone 7 have also shown the same symptoms among many
users, but Apple has not yet announced anything.