iPhone 15 series and other series have frequent problems after upgrading to iOS 18: serious decline in battery life

On July 12, according to @苹果君, after the iPhone 13 to 15 series were upgraded to iOS 18, issues such as battery life, fluency, signal and heating have become the focus of users. The first is the issue of battery life. Many users have reported that after upgrading to iOS 18, their iPhone 13 series' power consumption has accelerated. Compared with the previous version, the power consumption has dropped by 10%. Users of the iPhone 14 series also reported that battery life was reduced by about 8%; even the iPhone 15 series experienced a 5% battery drop.

Then there is the issue of smoothness. Users of the iPhone 13 to 15 series generally encounter lags and frame drops, which directly affects the daily use experience, especially for those users who have higher requirements for mobile phone performance. , this drop in experience is unacceptable.

Signal problem
After the upgrade, users found that the signal quality was not significantly improved, especially in environments with poor network signals. This problem is more prominent.

Heating problem
The heating problem of the device becomes serious during use. After long-term use, the temperature of the back of the phone rises, affecting the feel and may also have an adverse effect on the health of the battery.

System Selection
Currently, iPhone users can choose:

1. Test iOS 18
2. Stay on iOS 17.6

Recommendation
In view of possible software bugs in the new system, it is recommended that users not try it on the main iPhone iOS 18 beta.

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