ST01 AWASHINE iPhone XR-15PM One-Key DFU Box and its Related Accessories , Designed For Placing iPhones into Device Firmware Update (DFU) Mode . Product: AWESHINE ST01 One-Key DFU Box (Standard) and various power and volume button adaptors for different iPhone models (XR to 15Pro/15Pro Max). Functionality: Simplifies putting iPhones into DFU mode, which is useful for troubleshooting, restoring, or downgrading iOS. Accessories: Includes a four-in-one USB boot cable and specific adaptors for various iPhone models to connect to the DFU box. Compatibility: Adaptors are available for a wide range of iPhone models, including XR, XS/XS Max, 11 series, 12 series, 13 series, 14 series, and 15 series.