not connect lenovo A1000 spd sc7731

I can not connect lenovo A1000 spd sc7731 cpu driver changed
Action : Read Pattern Lock
Boot : SC7731/7730-EMMC
Tips:
1.Remove Battery, Insert usb cable, Insert battery
2.power off Phone, Remove & Reinsert Battery , insert USB Cable
(bootkey’s Volume Down or volume up)
Waiting for Phone Usb….
Phone found : SCI USB2Serial (COM70)
Connecting…
Bootstrap: SPRD3
Connected done.
sending 1st boot…
1st boot done.

Help me!!!

Attached Images
File Type: png sc7731.png (78.1 KB)