The user can replace keys if they are missing from the keyboard. The user can reattach the key once the area is dry The user can then take a cotton swab dipped in rubbing alcohol and wipe out the area under the key. Using a fingernail, screwdriver, or a flat tool, the user can insert it under the key and pop it up, removing it. The user can also remove the keys and clean the keypad. A cotton swab can also be used to get in the smaller areas. If the key itself is sticky the user can put rubbing alcohol on a cloth and wipe the area that is sticky. Another option is they can use a can of compressed air to blow out any crumbs or small pieces of material. If the keyboard is jammed, the user can try using a small clean paintbrush to wipe out any crumbs that may be on the edge of the keys. If no writing appears, see Software Is Not Updated below. If writing does appear from the USB keyboard then the error is due to a jam and not software. Test if the keyboard is jammed by attaching a USB keyboard. The keys on your keyboard won't respond or will not press down all the way.
