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Dear all
after I install it I found some problems like battery consumed rapidly and network signal not stable especially when I want to use mobile data
iPhone 11, iOS 16
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Please check your battery in Settings>Battery>Battery Health>Maximum Capacity.
What percentage can you see if you tap there?
Should it be close to 83-80%, your battery must be replaced, since it may have unpredictable behavior (low antenna transmitting/receiving included).
Do not forget to create a full backup of your iPhone before it dies completely.
Then make an appointment (*) and have your device serviced at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> https://locate.apple.com/choose-country-region . After checking it out, they'll give you all the available options.
Regards
Giulio
(*) You can do it:
- Online:--> Genius Bar Reservation and Apple Support Options - Apple;
- Contacting a local Apple Store or AASP among the list provided above;
- Using the "Apple Store" app, available and downloadable from AppStore.