Please help to unlock phone pin sc6815

Start at : [1/18/2016 / 11:37:08 AM]
Operation : Format File System [ v1.13 ]
Settings : SmartFormat is On

1. Remove battery. Insert battery back
2. Press and hold ‘VolumeUp’ and ‘VolumeDown’ keys
3. Insert cable

==== Wait for phone…

Phone found! [ 12 ]
Port Opened
Sync…
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync…
Sending FDL
[Info] : If SW freeze here more, than 15 seconds – remove cable
FDL Ready!
Boot Ver : SC6815 eMMC Loader v1.0 Infinity
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!

FlashMode Set : Ok!
Checking Structure …
Unknown structure detected! Something went wrong 🙁
If phone work normally – check correct selection (Model,FlashType)!

Elapsed: 00:01:15

Reconnect Power/Cable!

Finish at : [1/18/2016 / 11:38:25 AM]