How do I add a memory card to the Supersonic SC-89BL?

Contact manufacturer to request assistance.

Unable to identify which supersonic model it is.

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http://supersonicinc.com/index.php?route=information/creator&form_id=47

Most tablets are minimal for content. There are some good resources on the Internet that will answer your questions. Here is an example of one that came up with a google search on ' how to use android tablet ': http://www.dummies.com/how-to/consumer-electronics/Android-Tablets.html

Doing a hard factory reset

There should be an option for that in the settings menu.

YES IF PASSWORD PROTECTED ENTER PW HIT OK

When the tablet is OFF hold volume up button then switch on all the time holding the volume up button untill it boots into reset options. use vol up and down to scroll between options then power button to select.

Replace it or reset it

I don't know which OS your tablet uses... perhaps Jelly Bean. If so, if you push the Power button and the "Power Off" option shows up on the screen press the selection of "Power Off" and hold your finger down on it until a pop-up screen shows a selection of: Boot into "Safe Mode". Choose that and what happens is it boots up with no applications loaded. You should then be able to access the "Settings" and then choose "Factory Data Reset" option. Hope this works