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Help and support for
Samsung Galaxy S25 Ultra

Android 15

Change the device

Buy this device

Most viewed guides

Restart your phone

Improve battery life

Change ringtone

Sell your Samsung Galaxy S25 Ultra up to

£409.00*

*The final value depends on the condition of the device.

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Connectivity and network on your Samsung Galaxy S25 Ultra

Setup and first use

Connectivity and network

Troubleshooting

I can't use my phone's internet connection

I can't use WiFi

I can't use my phone as a WiFi hotspot

My phone uses a large amount of mobile data

Network settings

Change network mode

Turn airplane mode on or off

Reset network settings

Internet and WiFi

Set up your phone for internet

Connect to a WiFi network

Use hotspot on your phone

Turn automatic use of mobile data on or off

Data usage

Check data usage

Turn mobile data on or off

Turn roaming on or off

Bluetooth

Connect to a Bluetooth device

GPS

Turn GPS on or off

Backup and synchronisation

Back up pictures and videos to Google Drive

Transfer files between computer and phone