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v
iii
Table of contents
Double tap to wake up
125
Smart stay
125
One-handed mode
125
Device maintenance
126
Quick optimization
126
Battery
126
Storage
127
Memory
128
Language and input
128
Date and time
131
Troubleshooting
131
Lock screen and security
134
Screen lock types
134
Google Play Protect
136
Find My Device
136
Security update
136
Samsung Pass
137
Samsung Blockchain Keystore
137
Install unknown apps
137
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