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Table of Contents
3
149 Biometrics and security
150 Face recognition
153 Fingerprint recognition
156 Samsung Pass
161 Secure Folder
166 Accounts and backup
167 Samsung Cloud
168 Google
169 Advanced features
170 Dual Messenger
171 Digital wellbeing
173 Device care
175 Apps
176 General management
177 Accessibility
177 Software update
178 User manual
178 About phone
Appendix
179 Troubleshooting
186 Removing the battery
Settings
127 Introduction
127 Connections
129 Wi-Fi
131 Bluetooth
133 NFC and payment (NFC-enabled
models)
135 Data saver
136 SIM card manager
136 Mobile Hotspot and Tethering
138 Call & Message Continuity
(Galaxy A40)
138 More connection settings
140 Sounds and vibration
141 Dolby Atmos (surround sound)
141 Separate app sound
142 Notifications
142 App icon badges
143 Display
144 Blue light filter (Galaxy A40)
145 Changing the screen mode or
adjusting the display colour
(Galaxy A40)
146 Screensaver
147 Wallpapers and themes
147 Lock screen
148 Smart Lock
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