Hi there and welcome
Can you tell me please which model Tablet it is?
You will need to perform a reset of the Tablet, this will remove all data and return the Tablet to new, but you cannot avoid this, it is the whole reason for the security on the Pin.
To do this
Once done, you can then set up the Tablet again as new, with the Pin removed
If you have any problems, or would like any additional information or assistance, please do not hesitate to let me know.
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