Please refrain from purchasing if you are concerned about simple packaging. Startup has been confirmed. The terminals have been cleaned using a revival agent. Although there may be cases where it is difficult to start up normally due to compatibility with the main unit, please understand that we cannot provide a guarantee. The battery backup function cannot be guaranteed. * Since this is a used software, there may be cases where reading is poor. We always check the startup before shipping. * Please purchase with the understanding that this is a used item and has been stored at home. Please refrain from purchasing if you are concerned or if you are seeking perfection.