Iphone 6s plus in 2022
Im a iphone 6s plus user but the new update 15.2 is soo bad for my device no battery backup good.
lag on my software experience
yellow display and soo bad yellow tint photos capture plz give me some software improvements 🙏🙏🙏🙏🙏
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My 6S is great on 15.2
First try a forced restart
https://support.apple.com/en-gb/guide/iphone/iph8903c3ee6/ios
If that does not help the next procedure would be to backup then restore your device to factory, then restore the backup.
(1)How to back up your iPhone, iPad, and iPod touch – Apple Support
Remove SIM PIN if you have set one
(2) Restore your iPhone, iPad, or iPod to factory settings – Apple Support