2, if you can connect the machine, there is still a chance to copy.
3. Try to enter DFU mode to restore 1 and turn off your iPhone (pressing home and power button 10 second at the same time is a forced shutdown, and the effect is equivalent to unplugging the battery). 2. Press and hold the On/Off button and the Home button at the same time. 3. When you see the white Apple Logo, please release the On/Off key and keep pressing the Home button. 4. Open iTunes and connect your computer.