why error for flash?

Port:COM20
After format or Flash you have to press & hold power button for at least 1.30 mins.
Note for win7 users :
Start your Win 7 64bit with F8 key and choose ‘Disable Driver Signature Enforcement’.
After that the spd drivers will have the ability to be loaded.
Available Ports:COM3 COM20
Current Port:COM20
SPD U Disk Error Flash files password is = VolcanoAheadOfAllEVER
Available Ports:COM3 COM20
Detection initiated…
Vcc: null
Gnd: null
Analyzing D+ and D-…
Failed to detect.
Pinouts are not fonud!
Detection initiated…
Vcc: null
Gnd: 5
Analyzing D+ and D-…
Failed to detect.
Pinouts are not fonud!
Detection initiated…
Vcc: null
Gnd: 5
Analyzing D+ and D-…
D+ = 3, D- = 2
Analyzing USB device, please wait…
Found [SPD] USB device: SCI USB2Serial,(VID_1782&PID_4D00)
Setting…
Find USB device:SPRD U2S Diag (COM37), (VID_1782&PID_4D00)
Pinouts setting complete!

Internal version: SPRD3
Boot downloaded.
Start boot please wait a moment….
OR_RSP(0x97) func:_FDL_HWInit, line:4
Please put the baud set 115200, try again.
Ready to read/write again, please remove the power supply clip or battery and then re-loaded it.
SPD U Disk Error Flash files password is = VolcanoAheadOfAllEVER
Detection initiated…
Vcc: null
Gnd: 5
Analyzing D+ and D-…
D+ = 3, D- = 2
Analyzing USB device, please wait…
Find USB device:SPRD U2S Diag (COM37), (VID_1782&PID_4D00)

Internal version: SPRD3
Boot downloaded.
Start boot please wait a moment….
OR_RSP(0x97) func:_FDL_HWInit, line:4
Please put the baud set 115200, try again.
Ready to read/write again, please remove the power supply clip or battery and then re-loaded it.
Detection initiated…
Vcc: null
Gnd: 5
Analyzing D+ and D-…
Failed to detect.
Pinouts are not fonud!
Detection initiated…
Vcc: null
Gnd: 5
Analyzing D+ and D-…
Failed to detect.
Pinouts are not fonud!
Detection initiated…
Vcc: null
Gnd: 5
Analyzing D+ and D-…
D+ = 3, D- = 2
Analyzing USB device, please wait…
Find USB device:SPRD U2S Diag (COM37), (VID_1782&PID_4D00)

Internal version: SPRD3
Boot downloaded.
Start boot please wait a moment….
OR_RSP(0x97) func:_FDL_HWInit, line:4
Please put the baud set 115200, try again.
>>Ready to read/write again, please remove the power supply clip or battery and then re-loaded it.

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