Why is my touchscreen stuck?
How can I unlock my touchscreen?
Is this a good question?
The Samsung Galaxy S3 is a multi-touch, slate-format smartphone with eye-tracking ability, increased storage, and a wireless charging option.
Either the screen is dirty and needs cleaned or try turning it off and/or, taking the battery out for 15 seconds and putting it back in. Turn phone on see what happens. If it st ok 'll doesn't work check for deep scratches and/or water spots.
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