I can't tell which phone so try the old unplug the battery and wait a minute. Put the battery back in and try again.
If the battery is non-removable, press and hold the power button for about a minute, try again.
If that fails, back to the service counter.
Hello, I have a Samsung cellphone from Verizon under a year old with no contract (I don't see any model #). It was ok but now after I recharged it, the cellphone remained all black - just stopped working. I recharged it again and the same thing.
The little manual that came with it is not helpful. Could someone kindly tell me why and how to fix? Thanks ever so much!