LENOVO ZUK 1 and ZUK 2 EDL MODE

 ZUK 1
1.Go to recovery (volume (-) connect usb)

2.Reboot bootloader 

3. Enter this commend :" fastboot -i 0x2b4c oem reboot-edl"

ZUK 2

1.Hold volume (+) + (-)  connect usb 

2. Now phone in Fastboot mode

3.Enter this commend :" fastboot -i 0x2b4c oem reboot-edl"