19 December 2015

Sony Xperia U ST25i Flash done with flash tool

Posted by
19 December 2015
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This tutorial it's very simple to flash because this is tested by me without any risk you can do easy done job just following tutorial step by step and this tutorial when will use ? if your device in google pattern lock, screen lock, security lock, hang on logo, restarting problem then you can use this tutorial, first try to use flash file for above problem if your device will be not solve then download full firmware from below link and you will done this job. Must remember before use this tutorial because this is need to everyone first use this tutorial before check your device battery it is must charged up to 70% to 90% up this is half part of flashing this is needed or check also micro usb cable some time getting error of usb not recognize this problem to be in battery or micro usb cable so this is remember and this is free of flash file, full firmware or tools you can use this without any box just required some this required check in below which is need to flash so let's go how to flash of Sony Xperia.

Download Area
Download Sony Xperia U ST25i Full Firmware from HERE

Required for Flash:


  • Sony Xperia U ST25i Smart Device or with battery charged
  • Sony Xperia U ST25i Full Firmware or Tools with tested
  • Micro USB Cable
  • Computer or Laptop

How To Flash Sony Xperia U ST25i without any box:


  • Download Flash file from above link
  • Extract to Desktop or as you like path
  • Copy Sony Xperia U ST25i Flash file to C:\Users\XXXX\.flashTool\firmwares Paste here
  • Open Sony Android Flash tools
  • Click on Flash Button and choose Flash Mode button and Press Ok Button (see below image)


  • Then Choose your paste file this file automatically arrive if you paste in C:\Users\XXXX\.flashTool\firmwares
  • After Choose Flash file then wait until second windows open (see below image)



  • When your open second windows after insert battery in to device and Press and Hold Volume Down button and insert USB cable then your device automatically detecting to tool and flashing processing start.
  • When your device Flash done then you can see like below image


  • You are done from full firmware
  • Disconnect your device from usb cable and also take out your device battery in device
  • Again put battery in to device and Turn on your device.
Sony Xperia U ST25i Flash done with flash tool Video:

Sony Xperia U ST25i Flash done with flash tool Logs:
 10/021/2015 16:21:39 - INFO - Flashtool Version 0.9.19.10 built on 04-10-2015 21:00:00  
 10/021/2015 16:21:39 - INFO - Executing search strategies to find proxy selector  
 10/021/2015 16:21:40 - INFO - No proxy found for IE. Trying next one  
 10/021/2015 16:21:40 - INFO - Strategy firefox failed trying next one : No Firefox installation found  
 10/021/2015 16:21:40 - INFO - No proxy found for java. Trying next one  
 10/021/2015 16:21:40 - INFO - Syncing devices from github  
 10/021/2015 16:21:41 - INFO - Scanning devices folder for changes.  
 10/022/2015 16:22:02 - INFO - Pulling changes from github.  
 10/022/2015 16:22:03 - INFO - Devices sync finished.  
 10/022/2015 16:22:08 - INFO - Device disconnected  
 10/022/2015 16:22:29 - INFO - Selected Bundle for Sony Xperia U (ST25i). FW release : 6.0.B.3.184. Customization : CE  
 10/022/2015 16:22:30 - INFO - Preparing files for flashing  
 10/022/2015 16:22:51 - INFO - Please connect your device into flashmode.  
 10/023/2015 16:23:12 - INFO - Device connected in flash mode  
 10/023/2015 16:23:13 - INFO - Opening device for R/W  
 10/023/2015 16:23:13 - INFO - Reading device information  
 10/023/2015 16:23:13 - INFO - Phone ready for flashmode operations.  
 10/023/2015 16:23:13 - INFO - Opening TA partition 2  
 10/023/2015 16:23:13 - INFO - Current device : ST25i - YT9002UYK9 - 1261-3755_R3G - 1254-3522_6.1.1.B.1.10 - WORLD_6.1.1.B.1.10  
 10/023/2015 16:23:13 - INFO - Closing TA partition  
 10/023/2015 16:23:13 - INFO - Start Flashing  
 10/023/2015 16:23:13 - INFO - Processing loader.sin  
 10/023/2015 16:23:13 - INFO -   Checking header  
 10/023/2015 16:23:13 - INFO -   Flashing data  
 10/023/2015 16:23:14 - INFO - Loader : S1_Root_3065 - Version : R5E003 / Boot version : R10E013 / Bootloader status : ROOTABLE  
 10/023/2015 16:23:14 - INFO - Max packet size set to 64K  
 10/023/2015 16:23:15 - INFO - Making a TA backup  
 10/023/2015 16:23:15 - INFO - Opening TA partition 1  
 10/023/2015 16:23:15 - INFO - Start Dumping TA partition 1  
 10/023/2015 16:23:15 - INFO - Finished Dumping TA partition 1  
 10/023/2015 16:23:15 - INFO - TA partition 1 saved to C:\Users\Mobilecare\.flashTool\registeredDevices\YT9002UYK9\s1ta\2015-12-10_04-23-15\1.ta  
 10/023/2015 16:23:15 - INFO - Closing TA partition  
 10/023/2015 16:23:15 - INFO - Opening TA partition 2  
 10/023/2015 16:23:15 - INFO - Start Dumping TA partition 2  
 10/023/2015 16:23:15 - INFO - Finished Dumping TA partition 2  
 10/023/2015 16:23:15 - INFO - TA partition 2 saved to C:\Users\Mobilecare\.flashTool\registeredDevices\YT9002UYK9\s1ta\2015-12-10_04-23-15\2.ta  
 10/023/2015 16:23:15 - INFO - Closing TA partition  
 10/023/2015 16:23:15 - INFO - No flash script found. Using 0.9.18 flash engine  
 10/023/2015 16:23:15 - INFO - Opening TA partition 2  
 10/023/2015 16:23:15 - INFO - Writing TA unit 00002774. Value : [01]  
 10/023/2015 16:23:15 - INFO - Closing TA partition  
 10/023/2015 16:23:16 - INFO - Processing partition-image.sin  
 10/023/2015 16:23:16 - INFO -   Checking header  
 10/023/2015 16:23:16 - INFO -   Flashing data  
 10/023/2015 16:23:16 - INFO - Opening TA partition 2  
 10/023/2015 16:23:16 - INFO - Closing TA partition  
 10/023/2015 16:23:16 - INFO - Opening TA partition 2  
 10/023/2015 16:23:16 - INFO - Processing cache.sin  
 10/023/2015 16:23:16 - INFO -   Checking header  
 10/023/2015 16:23:16 - INFO -   Flashing data  
 10/023/2015 16:23:17 - INFO - Processing fotakernel.sin  
 10/023/2015 16:23:17 - INFO -   Checking header  
 10/023/2015 16:23:18 - INFO -   Flashing data  
 10/023/2015 16:23:19 - INFO - Processing kernel.sin  
 10/023/2015 16:23:19 - INFO -   Checking header  
 10/023/2015 16:23:19 - INFO -   Flashing data  
 10/023/2015 16:23:20 - INFO - Processing modem.sin  
 10/023/2015 16:23:20 - INFO -   Checking header  
 10/023/2015 16:23:20 - INFO -   Flashing data  
 10/023/2015 16:23:22 - INFO - Processing modemfs.sin  
 10/023/2015 16:23:22 - INFO -   Checking header  
 10/023/2015 16:23:22 - INFO -   Flashing data  
 10/023/2015 16:23:23 - INFO - Processing prcmu.sin  
 10/023/2015 16:23:23 - INFO -   Checking header  
 10/023/2015 16:23:23 - INFO -   Flashing data  
 10/023/2015 16:23:23 - INFO - Closing TA partition  
 10/023/2015 16:23:23 - INFO - Opening TA partition 2  
 10/023/2015 16:23:23 - INFO - Processing system.sin  
 10/023/2015 16:23:23 - INFO -   Checking header  
 10/023/2015 16:23:23 - INFO -   Flashing data  
 10/025/2015 16:25:01 - INFO - Closing TA partition  
 10/025/2015 16:25:01 - INFO - Opening TA partition 2  
 10/025/2015 16:25:01 - INFO - Closing TA partition  
 10/025/2015 16:25:01 - INFO - Opening TA partition 2  
 10/025/2015 16:25:01 - INFO - Closing TA partition  
 10/025/2015 16:25:01 - INFO - Opening TA partition 2  
 10/025/2015 16:25:01 - INFO - Writing TA unit 00002725. Value : [32, 30, 31, 35, 2D, 31, 32, 2D, 31, 30, 20, 31, 36, 3A, 32, 35, 3A, 30, 31, 00]  
 10/025/2015 16:25:01 - INFO - Writing TA unit 00002774. Value : [00]  
 10/025/2015 16:25:01 - INFO - Closing TA partition  
 10/025/2015 16:25:01 - INFO - Ending flash session  
 10/025/2015 16:25:01 - INFO - Flashing finished.  
 10/025/2015 16:25:01 - INFO - Please unplug and start your phone  
 10/025/2015 16:25:01 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings  
 10/025/2015 16:25:01 - INFO - Device connected in flash mode  
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