Itel it1502 sc7715ea hanging done by cs-tool

Code:

Action : Read Info
 Boot : SC7715-EMMC
 Tips:
 1.Remove Battery, Insert usb cable, Insert battery
 2.power off Phone, Remove & Reinsert Battery , insert USB Cable
 (In Case Some Phone Required to hold bootkey)
 Waiting for Phone Usb....
 Phone found : SCI USB2Serial (COM3)
 Connecting...
 Bootstrap: SPRD3
 Connected done.
 sending 1st boot...
 1st boot done.
 Sending 2nd boot...
 2nd boot done.
 Checking H/W report info...
 Read info is done.
 
 Reading Project Property ...
 
 Brand          : itel
 Phone Model    : itel it1501
 Android Ver    : 4.4.2
 CPU/Processor  : SP7715EA_V1.0.0
 SPD Project ver : scx15_w450_it1501_UUI-user 4.4.2 MocorDroid _P14.30.2_P2 test-keys
 SW Version      : IT1501-W450-20150114
 
 Action completed
 Time taken : 00:00:18
 Reconnect Battery/USB Cable
 CS-Tool Ver 1.39.3


Code:

Action : Format / Reset
 Boot : SC7715-EMMC
 Tips:
 1.Remove Battery, Insert usb cable, Insert battery
 2.power off Phone, Remove & Reinsert Battery , insert USB Cable
 (In Case Some Phone Required to hold bootkey)
 Waiting for Phone Usb....
 Phone found : SCI USB2Serial (COM3)
 Connecting...
 Bootstrap: SPRD3
 Connected done.
 sending 1st boot...
 1st boot done.
 Sending 2nd boot...
 2nd boot done.
 Checking H/W report info...
 Read info is done.
 Checking BCB command info ...
 
 Auto formatting...
 Format Done.
 
 Action completed
 Time taken : 00:00:13
 Reconnect Battery/USB Cable
 CS-Tool Ver 1.39.3