Device Guides
Apple iPhone 12 Pro
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iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.

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My mobile phone is slow
This troubleshooting guide will take you through a number of possible causes
to help you find a solution to your problem.
Restart your mobile phone.
Possible cause 1:
Your mobile phone is overloaded for unknown reasons
Solution:
Restart your mobile phone
Tap the Top volume key.
Tap the Bottom volume key.
Tap and hold the Side button until your mobile phone restarts.