![AMGOO AM412 User Manual Download Page 17](http://html1.mh-extra.com/html/amgoo/am412/am412_user-manual_2932110017.webp)
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Remove and insert the battery – If the phone has an internal battery, please press and hold the
power button.
The phone powers off by itself
Check if the screen lock of the phone is enabled.
Check if the phone needs to be charged.
The battery won’t charge
Check if the battery is already fully charged.
Make sure that the battery is inserted correctly.
Ensure that the battery being used is a AMGOO approved battery.
Double check if the charger connector is properly connected to the phone.
Note:
Connect charger only after the battery has been inserted.
The standby time is too short
Please keep in mind that standby time relates directly to phone usage (Internet, Text, Voice Calls,
Maps, etc.).
Batteries typically have to be replaced after a year of use.
The phone cannot connect to the network (Voice or Data)
Verify if you have active service with your service provider.
Contact your local network service provider and verify if you are within its network coverage area.
The phone displays a SIM Error