My attachable keyboard stopped working on my rca viking 10 pro. What do I do to make it work again? I have tried a hard...

See if anything is blocking the fans movement. It could be your system overheating. If so, this must be addressed as this is a fire hazard

First, try blowing on the cartridges. It may sound crazy, but it sometimes works! If this does not work, then I would put in a new 72 pin connector. Try to make sure it is not a third party one. If possibl3, get the real deal.