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Samsung
Galaxy S21 Ultra 5G
Data & wireless
Samsung Galaxy S21 Ultra 5G
Android 11.0
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Troubleshooting
I can't use Wi-Fi
I can't use my phone as a Wi-Fi hotspot
I can't connect to another Bluetooth device
A Bluetooth device can't connect to my phone
My phone uses a large amount of mobile data
Connecting phone and computer
Transfer files between computer and phone
Wi-Fi
Turn Wi-Fi on or off
Connect to a Wi-Fi network
Use your phone as a Wi-Fi hotspot
Turn automatic use of mobile data on or off
Bluetooth
Turn Bluetooth on or off
Pair a Bluetooth device with your phone
NFC
Turn NFC on or off
Synchronisation
Back up pictures and videos to Google Drive
Turn automatic synchronisation of content on or off
Data usage
View data usage
Turn mobile data on or off
Turn data roaming on or off