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Table of contents
vii
Device maintenance
99
Quick optimization
99
Battery
100
Storage and memory card
100
Memory
101
Language and input
102
Date and time
104
Troubleshooting
105
Lock screen and security
108
Screen lock types
108
Clock and information
109
Google Play Protect
109
Find My Device
109
Security update
110
Samsung Pass
110
Install unknown apps
110
Secure Folder
111
Secure startup
111
Encrypt SD card
111
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