Answer to: resting to factory sttingsIf it's not an old model then you have a recovery partition, so with Asus you shut down your computer. After you turn it back on hit the F9 key right after you release the power button.
Answer to: Game cartridge won't stay down.If you've recently done repair on your nintendo, and have removed the cartridge holder at some point , when you replace the cartridge holder , if you tighten the front two screws too tightly , then it will cause the cartridge to not stay down .In this case ,all you will need to do is take the top off your nintendo and slightly loosen the front two screws of your cartridge holder . This commonly happens when someone replaces a 72 pin connector if they are not aware of this . Now , the cartridge has to be level . But , you must not loosen the screws in the back of your cartridge holder . If I am repairing my nintendo , I will usually before I put the top back on , put a game in there and start loosening and tightening the front screws until I get a connection .