It’s every phone owner’s nightmare: Your phone won’t respond to any of your taps, or even when you press any of its hard keys. There’s seemingly nothing you can do.
Often, your best bet is to try a quick reset by removing and replacing the battery, and then turning on your phone again. To remove the battery, flip the Droid 2 over, so you see the battery cover. (See SD Card and Battery for more details.) Slide down the battery cover, and then pull up gently on the plastic tab under the battery’s left corner. Don’t pull it hard or yank on it, and don’t cut the tab. Lift out the battery.
After you’ve taken it out, put the battery back into place, making sure that the tab is sticking out so that you can use it to dislodge the battery when you want to remove it again. After you’ve put the battery back in place, slide the battery door back over it. Now turn on the Droid 2. In many cases, this thaws your frozen phone.