: Use the "Boot Device" (引导设备) and "Mount Device" (挂载设备) options. Wait for the progress bar to finish.
This is common. Click the "Mount Device" button multiple times, as the process can be finicky.
Complete Guide: Download Tigger Ramdisk UPD for iOS Management
Click "Check Device" to ensure the tool recognizes the phone in DFU mode.
Execute the automated Serial Number rewrite script. Once the custom serial modification completes, allow the system to reboot. Step 4: Generating and Restoring Activation Tickets Place the device back into DFU mode once it restarts.
Removes or circumvents the iCloud Activation Lock screen on compatible checkmra1n devices.