Service [Q] Sylvania SYTAB10ST Tablet pattern Locked Need to Factory Reset

Hello,

one of my Friend is having Sylvania SYTAB10ST (10 in Tablet) (with Add On Keyboard can be connect via USB)

Tablet is pattern Locked & Need to Factory Reset.

I searched the Web But could not find the proper method to do the Factory Reset

Looks tedious.

I need Help

Thanks

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