No operational issues. Please refrain from purchasing if you are looking for a perfect item, as this is a used product. The screen is in beautiful condition, I believe. There are a few scratches on the edges. Please refer to the photos for details. The battery has been replaced with a non-genuine one, so the maximum capacity is not displayed. As it is a compact model (with a small battery), I feel that the battery life is poor. This is a listing for the main unit only. Please note that the box and cables are not included. The carrier at the time of purchase was docomo, but the SIM lock has been unlocked. The data will be initialized, and it will be shipped via Takkyubin Compact. I am also listing a case for this iPhone 12 mini. I will offer a discount if you purchase them together. IMEI (Serial Number) 353010112004769