Demotion method:
Computer download and installation of AISI assistant
1. Download and install the latest version of AISI Assistant PC, and connect the mobile device to the computer with a data cable; Click "Brush Prison Break" above to enter the "one-click brush" interface. If the connection is successful, the firmware will automatically match;
2. Select the iOS version you want to brush in the brushable version, and click "Brush Now", after which AISI Assistant will automatically download the firmware and brush it for you; If you have downloaded the firmware from other places, you can click "Import" and then click "Refresh the machine now";
Downgrading indicates that "Save User Data and Brush Machine" is not recommended. Degraded data protection may result in a brush failure or failure to start the machine after a successful brush.
3. Next, the machine will be brushed automatically, and the data cable will be connected during the process, waiting for the brush to be completed. After brushing, the mobile device will automatically turn on;
4. After the mobile device is turned on, click "Professional Brush-Activate Now" to activate it, or you can activate it manually on the device.
Mobile devices with activation locks need to enter an Apple ID to be activated. If the iPhone is activated, the device needs to insert a sim card.