1.Connect data cable while the device is in boot or recovery mode.
2.Press the volume of the device to increase the key firstly, then press the volume reduction key, and then hold down the shutdown key do not loosen;
3.Hold down the volume-reducing button about 5 seconds as soon as possible when powering off the phone ; then release the power -off button after 5 seconds,and hold down the volume -reducing key until the platform prompts to enter the DFU successfully.
2.Press the volume of the device to increase the key firstly, then press the volume reduction key, and then hold down the shutdown key do not loosen;
3.Hold down the volume-reducing button about 5 seconds as soon as possible when powering off the phone ; then release the power -off button after 5 seconds,and hold down the volume -reducing key until the platform prompts to enter the DFU successfully.