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Help and Support for
Samsung Galaxy S21 Ultra 5G
Android 11.0
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Samsung
Galaxy S21 Ultra 5G
Basic use
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Getting started
Basic use
Calls and contacts
Messaging
Apps and media
Connectivity
Specifications
Basic use - Samsung Galaxy S21 Ultra 5G
Troubleshooting
My phone's battery life is short
Sound settings
Select ring tone
Turn silent mode on or off
Screen settings
Set date and time
Turn notifications on or off
Security codes
Turn use of PIN on or off
Turn use of phone lock code on or off
Software update
Update phone software
Restore factory default settings
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