Troubleshooting
My phone is frozen or cannot switch on
Check the battery contacts, remove and reinstall your battery, then turn your phone on.
Check the battery power level, charge for at least 20 minutes.
My phone cannot connect to a network or "No service" is displayed
Try connecting in another location. Verify the network coverage with your operator.
Unable to make outgoing calls
Make sure your phone is connected to a network, and the network is not overloaded
or unavailable.
Unable to receive incoming calls
Make sure your phone is switched on and connected to a network (check for overloaded
or unavailable network).
SIM card PIN locked
Contact your network operator to obtain the PUK code (Personal Unblocking Key).
To configure a new 4G network:
On your device, tap Settings.
Select Wireless & networks > More... > Mobile networks.
Select Network settings. In Network operators, select your operator.
In Access Point Names, select the correct access point name and enter the exact
connection parameters provided by your 4G provider.
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