[Sony Xperia T, TL, TX, V] ahmedmummy:
this log file :

10/026/2014 21:26:23 - INFO - <- This level is successfully initialized

10/026/2014 21:26:23 - INFO - Flashtool Version 0.9.16.0 built on 19-04-2014 19:00:00

10/026/2014 21:26:31 - INFO - Checking if changes have been made to devices folder.

10/026/2014 21:26:42 - INFO - Pulling changes from github

10/027/2014 21:27:13 - INFO - Devices sync finished.

10/027/2014 21:27:19 - INFO - Device disconnected

10/028/2014 21:28:05 - INFO - Selected Bundle for Sony Xperia V (LT25i). FW release : 9.1.A.1.140. Customization : Stock

10/028/2014 21:28:05 - INFO - Preparing files for flashing

10/028/2014 21:28:22 - INFO - Please connect your device into flashmode.

10/032/2014 21:32:10 - INFO - Device connected in flash mode

10/032/2014 21:32:11 - INFO - Opening device for R/W

10/032/2014 21:32:11 - INFO - Reading device information

10/032/2014 21:32:11 - INFO - Phone ready for flashmode operations.

10/032/2014 21:32:11 - INFO - Current device : SOL21 - BX903JYFQ5 - 1265-0553_R19H - 1263-9894_9.0.F.0.195 - KDDI-LTE_9.0.F.0.195

10/032/2014 21:32:11 - INFO - Start Flashing

10/032/2014 21:32:11 - INFO - Processing loader.sin

10/032/2014 21:32:11 - INFO - Checking header

10/032/2014 21:32:11 - INFO - Flashing data

10/032/2014 21:32:11 - INFO - Processing of loader.sin finished.

10/032/2014 21:32:13 - INFO - Loader : S1_Root_7054 - Version : R5A058 / Boot version : R11A023 / Bootloader status : ROOTED

10/032/2014 21:32:14 - INFO - Processing partition-image.sin

10/032/2014 21:32:14 - INFO - Checking header

10/032/2014 21:32:14 - INFO - Flashing data

10/032/2014 21:32:14 - INFO - Processing of partition-image.sin finished.

10/032/2014 21:32:14 - INFO - No bootdelivery to send

10/032/2014 21:32:14 - INFO - Processing tzbsp.sin

10/032/2014 21:32:14 - INFO - Checking header

10/032/2014 21:32:14 - INFO - Flashing data

10/032/2014 21:32:14 - INFO - Processing of tzbsp.sin finished.

10/032/2014 21:32:14 - INFO - Processing kernel.sin

10/032/2014 21:32:14 - INFO - Checking header

10/032/2014 21:32:14 - INFO - Flashing data

10/032/2014 21:32:17 - INFO - Processing of kernel.sin finished.

10/032/2014 21:32:17 - INFO - Processing fotakernel.sin

10/032/2014 21:32:17 - INFO - Checking header

10/032/2014 21:32:17 - INFO - Flashing data

10/032/2014 21:32:19 - INFO - Processing of fotakernel.sin finished.

10/032/2014 21:32:19 - INFO - Processing amss_fs_2.sin

10/032/2014 21:32:19 - INFO - Checking header

10/032/2014 21:32:19 - INFO - Flashing data

10/032/2014 21:32:19 - INFO - Processing of amss_fs_2.sin finished.

10/032/2014 21:32:19 - INFO - Processing amss_fs_1.sin

10/032/2014 21:32:19 - INFO - Checking header

10/032/2014 21:32:19 - INFO - Flashing data

10/032/2014 21:32:19 - INFO - Processing of amss_fs_1.sin finished.

10/032/2014 21:32:19 - INFO - Processing amss_fsg.sin

10/032/2014 21:32:19 - INFO - Checking header

10/032/2014 21:32:19 - INFO - Flashing data

10/032/2014 21:32:19 - INFO - Processing of amss_fsg.sin finished.

10/032/2014 21:32:19 - INFO - Processing apps_log.sin

10/032/2014 21:32:19 - INFO - Checking header

10/032/2014 21:32:20 - INFO - Flashing data

10/032/2014 21:32:20 - INFO - Processing of apps_log.sin finished.

10/032/2014 21:32:20 - INFO - Processing cache.sin

10/032/2014 21:32:20 - INFO - Checking header

10/032/2014 21:32:20 - INFO - Flashing data

10/032/2014 21:32:22 - INFO - Processing of cache.sin finished.

10/032/2014 21:32:22 - INFO - Processing system.sin

10/032/2014 21:32:22 - INFO - Checking header

10/032/2014 21:32:22 - INFO - Flashing data

10/035/2014 21:35:36 - ERROR - Processing of system.sin finished with errors.

10/035/2014 21:35:36 - INFO - Ending flash session

10/035/2014 21:35:36 - ERROR - Read error :31 : A device attached to the system is not functioning.

10/035/2014 21:35:36 - ERROR - Error flashing. Aborted

10/035/2014 21:35:39 - INFO - Device connected with USB debugging off

10/035/2014 21:35:39 - INFO - For 2011 devices line, be sure you are not in MTP mode

10/035/2014 21:35:41 - INFO - Device disconnected

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is there any solution?