I use a 4-digit PIN to unlock my tablet. It was fine last night, this morning it won’t unlock. It’s a Samsung Galaxy TAB A
Solved
My tablet won't unlock
Best answer by JAQ-PC
Have you restarted your tablet recently? Might need to do it again. I've had issues in the past with different phone & tablets where they restarted after an update or something and they didn't quite work right until I turned off & restarted it. To be clear, I mean to fully power it down (maybe even remove your battery if you can) and then turn it back on. If that doesn't work, your best bet would be to call your carrier support. They should be able to direct you on what your options are
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