Same thing happens to me. Happens every so often actually (maybe once 1-2 times week). Black screen with blinking blue light and no buttons respond. Anyone might know what's wrong and if there is a fix?
When this happens, I restart by pressing down all buttons - volume up, volume down, home, and power - then it restarts and works again.
Screen is black with a blue light flashing every 5 seconds? I plugged it in but no difference. Worked fine last night. What. Could be the cause?
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Try holding the power button and volume down button until the phone turns off. Try powering it back up and see what happens.
Have you found a solution to it. i have a smilar problem. my screen is off like a tv tuned off but functions properly. even touch screen working since i can pick calls but no display on phone. i have tried the volume keys trick. it restarts n reboots alright but no display still i only hear the sounds..
what does it mean if your phone turns on but you get no display but it vibrates and calls and the notification light goes from blue to light blue