TIPS:
1.To confirm whether the using system is IOS 14.5.1 or IOS 15.0.
These two systems are not stable and have BUG.
Update the system can solve the touch problems.
2.Can be upgraded to IOS 14.6 or 14.7 system.
PS: The two systems have the following BUG, please avoid using these systems.
IOS 14.5.1: With bugs like APP flashback, overheat, frame drops, and performance degradation.
IOS 15.0: With bugs like APP flashback, overheat, vibrate with sounds, rings without sounds.
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