In the event that the battery on your Ascend II is very low, the device may exhibit the following behavior. The screen might stay off until the device is attached to a power source (USB charger, computer w/ USB cord). Note that a computer will most likely charge the device slower than a USB wall plug. It might seem as if the phone is not charging, but it most likely has already begun to. Give the device some time while connected to the power source in order to charge.

It is also recommended to remove the battery from the phone after this, plug the phone in while the battery is out, and when the screen turns on go ahead and slip the battery back in.