Thank you for your support to Tinydeal.
Please check whether you have set the screen save function.
If it is set, please reset it. Please make sure that you have charged the item correctly.
And check whether the connection of the battery is tight. If it is loose, you can place some paper between the battery and the back of the item to make the connection tighter.
Make sure the phone is not lack of battery.
you can check with the two battery , or you can check it with the
usb cable connect to your computer.
Or you can restore the phone like this:
Setting-----restore setting----input password 0000(or 1122or1234).
And all the setting will all right.
Any other questions please feel free to contact us on https://help.tinydeal.com/contact-us. And we would answer you within 24 hours.
Have a nice day!