Sony Xperia 10
It's not possible to use my phone's internet connection
Solution 2 of 4: There's an error in the operating system on your phone
If your phone is slow or freezes, it might help to restart it.
If your phone is slow or freezes, it might help to restart it.
Press and hold On/Off.
Simultaneously press and hold the upper part of the Volume key and keep them both pressed until your phone restarts.