[Sony Cross-Device General] Captain Droid:
Guys Can somebody please explain to me whats this ERROR 31

Please check the log file i am attaching

28/001/2014 19:01:14 - INFO - <- This level is successfully initialized

28/001/2014 19:01:14 - INFO - Flashtool Version 0.9.10.1 built on 2013-01-09 19:49:47

28/001/2014 19:01:14 - INFO - You can drag and drop ftf files here to start flashing them

28/001/2014 19:01:20 - INFO - Device disconnected

28/003/2014 19:03:33 - INFO - Selected LT28h_6.2.B.0.211_FTF.ftf

28/003/2014 19:03:33 - INFO - Preparing files for flashing

28/004/2014 19:04:27 - INFO - Please connect your device into flashmode.

28/020/2014 19:20:55 - INFO - Device connected in flash mode

28/020/2014 19:20:56 - INFO - Opening device for R/W

28/020/2014 19:20:56 - INFO - Reading device information

28/020/2014 19:20:56 - INFO - Phone ready for flashmode operations.

28/020/2014 19:20:56 - INFO - Current device : LT28h - CB5A1LFNXZ - 1267-1661_R2H - 1252-5917_6.2.B.0.211 - WORLD_6.2.B.0.211

28/020/2014 19:20:56 - INFO - Start Flashing

28/020/2014 19:20:56 - INFO - Processing loader

28/020/2014 19:20:56 - INFO - Checking header

28/020/2014 19:20:56 - INFO - Flashing data

28/020/2014 19:20:58 - INFO - Loader : S1_Root_de72 - Version : R5C010 / Bootloader status : ROOTABLE

28/020/2014 19:20:58 - INFO - Processing partition-image.sin

28/020/2014 19:20:58 - INFO - Checking header

28/020/2014 19:20:58 - INFO - Flashing data

28/020/2014 19:20:59 - WARN - This file is ignored : simlock.ta

28/020/2014 19:20:59 - INFO - Processing kernel.sin

28/020/2014 19:20:59 - INFO - Checking header

28/020/2014 19:20:59 - INFO - Flashing data

28/021/2014 19:21:01 - INFO - Processing fotakernel.sin

28/021/2014 19:21:01 - INFO - Checking header

28/021/2014 19:21:01 - INFO - Flashing data

28/021/2014 19:21:03 - INFO - Processing amss_fs_2.sin

28/021/2014 19:21:03 - INFO - Checking header

28/021/2014 19:21:03 - INFO - Flashing data

28/021/2014 19:21:03 - INFO - Processing amss_fs_1.sin

28/021/2014 19:21:03 - INFO - Checking header

28/021/2014 19:21:04 - INFO - Flashing data

28/021/2014 19:21:04 - INFO - Processing amss_mdm_fsg.sin

28/021/2014 19:21:04 - INFO - Checking header

28/021/2014 19:21:04 - INFO - Flashing data

28/021/2014 19:21:05 - INFO - Processing amss_mdm_efs_2.sin

28/021/2014 19:21:05 - INFO - Checking header

28/021/2014 19:21:05 - INFO - Flashing data

28/021/2014 19:21:05 - INFO - Processing amss_fsg.sin

28/021/2014 19:21:05 - INFO - Checking header

28/021/2014 19:21:05 - INFO - Flashing data

28/021/2014 19:21:05 - INFO - Processing amss_mdm_efs_1.sin

28/021/2014 19:21:05 - INFO - Checking header

28/021/2014 19:21:05 - INFO - Flashing data

28/021/2014 19:21:05 - INFO - Processing apps_log.sin

28/021/2014 19:21:05 - INFO - Checking header

28/021/2014 19:21:05 - INFO - Flashing data

28/021/2014 19:21:07 - INFO - Processing system.sin

28/021/2014 19:21:07 - INFO - Checking header

28/021/2014 19:21:07 - INFO - Flashing data

28/023/2014 19:23:27 - INFO - Ending flash session

28/023/2014 19:23:27 - ERROR - 31 : A device attached to the system is not functioning.

28/023/2014 19:23:27 - ERROR - Error flashing. Aborted

28/023/2014 19:23:28 - INFO - Device disconnected