My name is***** will try my best to help you with your question.
If you cannot sign into the tablet even after resetting the password ***** it is not possible to change the sign-in method from password ***** PIN.
You will need to reset the tablet and set it up again.
To reset the Linx 8.1:
--------------------Kindly rate my service 5 stars at the top of your question page if my answer helped so I am rewarded for my time; tips appreciated :)You can always reply back at any time if you need further assistance.Pete.--------------------
If you don’t have a keyboard connected to Windows 8 tablet, you’ll need to use the on-screen keyboard to do these reset steps. From the Windows 8 sign-in screen, tap or click the Ease of access icon in the lower-left corner of the screen, and then tap or click On-Screen Keyboard.
There is no point 7 - I hit return by accident!
Since you don't have a keyboard attached you will need to tap the Ease of access icon in the lower-left corner of the screen, and then tap On-Screen Keyboard and use it to complete steps 1-5.