: Obtain the correct firmware (often a file named update.zip or similar) from the manufacturer's support site or a verified community forum.
If the touch points are wrong after an update, you may need to enter the Factory Settings (usually code 126 , 8888 , or 3368 ) and adjust the "Touch Panel" settings. A-media Auto -1024x600 S- Software Update
The manufacturer does not host a universal public repository. Because these are OEM units sold under dozens of brand names (Eonon, Xtrons, Dasaita, etc.), you must source the update carefully. : Obtain the correct firmware (often a file named update