johngear

Hello,

Today i will show you how to unbrick your Sony Xperia V LT25 and update boot. Sony Xperia V LT25 smartphone can be bricked because of damaged boot.

If your phone is dead and you have warranty - send your phone to Sony - you will get new phone.

If your phone is dead and you do not have warranty, this tutorial is for you. Remember, during this process you can damage your phone, everything you are doing on your own risk.

Bricked phone symptoms:

• can't power on after flash,
• no lcd or led reaction for power button,
• no lcd or led reaction for charger,
• no lcd or led reaction if phone is connected to PC,
• your PC can't detect your phone with vol-,
• phone does not vibrate when holding vol+ and power together.

Repair steps:

1. Firstly connect turned off bricked phone to your PC. If phone will be detected in device manager as:

qhusb_dload device

you are lucky and this is the end of the first step for you. Just disconnect phone.

If your phone can't be detected at all, you must find testpoint. Disassemble your phone using this service manual: http://sony.yt/topic...kcja-serwisowa/, remove battery and connect your phone using testpoint.

2. Download and install the latest Gordon's Gate Flash Driver from this post:

3. Download and run this s1tool:

4. Download boot firmware for your Sony Xperia V LT25 (extract it from rar):

5. In S1tool choose S1 EMERGENCY mode, press Flash button, select Sony Xperia V LT25 boot firmware .sin_file_set file,

6. Press Testpoint READY button:
 

 

and if your phone is detected as qhusb_dload device, just attach usb cable. If not, connect testpoint to GND and attach USB cable:

 

 

 

 

7. When drivers will be installed and phone will be detected, program will ask you to disconnect testpoint. Disconnect testpoint from GND and press Testpoint READY button.

8. After that phone will load emergency s1 loader, re-enumerate usb, load s1 loader and flash selected boot firmware.

Welcome to S1 tool.
That is small and crippled subset of SETOOL2 service tool.
 
SELECT FIRMWARE PACKAGES
YOU CAN SELECT SEVERAL PACKAGES WITH CTRL BUTTON
CHECKING PACKAGES ...
 
DETACH USB CABLE FROM PHONE
REMOVE BATTERY FROM PHONE
ATTACH TESTPOINT
PRESS "READY", THEN ATTACH USB CABLE TO PHONE
 
will use DLOAD protocol ...
0808010600900000
0D0F50424C5F446C6F6164564552322E30
162001000100
17004001000100E1507E00
PRODUCT DETECTED: "SONY MSM8960-3 Pro OEM1 Fused"
1801000F43240892D02F0DC96313C81351B40FD5029ED98FF9EC7074DDAE8B05CDC8E1
PROCESSING ...
REMOVE TESTPOINT NOW, THEN PRESS "READY"
 
Emergency loader uploaded ...
 
RUNNING S1_PRELOADER VER "R5G008"
LOADER AID: 0001
DEVICE ID: 2078EB03
FLASH ID: "00FE/004E003F"
LOADER VERSION: "R5G008"
 
WRITING PACKAGES ...
Processing package
C:\Users\Administrator\Desktop\S1Boot_R11B023_HWID7E50E1.SIN_FILE_SET
 
Processing ACPU files
PROCESSING: boot.sin
no update files in package
FINISHED
Elapsed:29 secs.

9. Flash your phone fully with Sony Update Service, Sony PC Companion or any other flasher like current Flashtool version or this S1tool (S1 FLASH MODE) using all firmware parts (APPSW, FSP).

10. Time to reassembly your phone using service manual: http://sony.yt/topic...kcja-serwisowa/

Now your phone should be fixed


Credits: Big thanks to mr the_laser for creating this fantastic software and solution

Best regards,

Jurij
 

Tutorial worked out for Sony.yt forum - copying is prohibite

file is corrupt when trying to extract