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Basic settings for your Apple iPhone 15 Pro Max

Troubleshooting

I can't receive messages on my voicemail
I can't check my voicemail
I can't use WiFi Calling
I can't use my phone's Visual Voicemail
My phone's battery life is short
I can't make voice calls
I can't receive voice calls

Calls and voicemail

Turn call waiting on or off
Turn your own caller ID on or off
Turn WiFi Calling on or off
Set up voicemail
Cancel all diverts
Use Visual Voicemail
Change FaceTime settings
Turn on Crash Detection
Create Contact Poster

App management

Install apps on your phone
Use App Library
Close apps
Use music player
Turn automatic app updates on or off
Turn Offload Unused Apps on or off
Change background app refresh settings
Turn tracking request for downloaded apps on or off
Save information about what data your apps use
Turn Communication Safety on or off
Turn Sensitive Content Warning on or off
Lock or hide an app

Battery usage

Improve battery life
Turn optimised battery charging on or off

Restart

Restart your phone

Update and restoring factory settings

Update your phone
Factory reset your phone