Removed from a working AVIC-ZH77. This is an HDD that cannot be used, does not proceed from the opening screen after startup, etc. It is an HDD containing the 2014 map data for repair or replacement. It is believed to be compatible with Carrozzeria Cyber Navi AVIC-ZH07/09/99, but as I am an amateur, please check the images carefully and research yourself if you are concerned. The operation confirmation image was taken before disassembly, so no operational guarantee is provided after arrival. Also, as this is a part for an old model, it will be treated as a junk item except for power-on failure after the product arrives, so we cannot provide support after arrival. Please take a good look at the product images and understand and agree beforehand. Please note that even with the same symptoms, there may be other causes of failure, and this part replacement may not resolve the issue.