BlackBerry Z10 lock with no screen
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I have a BlackBerry Z10 since few weeks, it was working since I press someting and now it's lock with no screen and all stay black, it is not opening at all, even if I press 10 second to re-initialize it, and even wen clicked and tapped and swiped the sreen it stay black, and the battery was full charge, and the del do not light-up wen I plug the BlackBerry charger. The charger work ok since I've try it with another phone. I did not put any pass words.
What can I do ?