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Is this your tablet?  If so, it may be cheaper and less trouble to just get a new tablet.

https://www.ebay.com/itm/PIONEER-R1-7-TABLET-8G-HDMI-WIFI/202095947198?hash=item2f0ddb6dbe:m:m9tOSwRY1HYZoAqq1bpZn4g

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open