No disassembly. Please confirm the version information carefully. This is a used item. Used item!! Please refrain from purchasing if you are sensitive to imperfections or seek perfection. By purchasing, you are deemed to have agreed to the terms. No refunds will be given under any circumstances. I purchased this as a junk item, but it works. Operation has been confirmed. Buttons, sticks, and UMD all function well. I haven't disassembled it because there's nothing to fix. Please refer to the photos for the condition. I applied oil because of a strange noise when reading UMDs. The noise is gone. There may be a smell of oil. ※Although the UMD also works well, it may occasionally fail to read specific software. Included items: Genuine battery: 1 Charger: 1 New protective case: 1 Monster Hunter 4G memory stick: 1 Software: 3 (I will consider requests for software.)