Hello,
Today i will show you how to unbrick your Sony Xperia SP C5303 and update boot. Sony Xperia SP 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 each golden point on main board one by one to metal shield and attach usb cable. If your phone will be detected in device manager as flash device or something like that - congratulations - you've found testpoint. Don't forget to take a picture of main board and mark testpoint for other sony.yt members and post it in this topic 
2. Download and install the latest Gordon's Gate Flash Driver from this post: 
ggsetup-3.0.0.7.exe 3.58MB
14133 downloads
3. Download and run this s1tool:
s1tool 19V2015.exe 3.52MB
2962 downloads
4. Download boot firmware for your Sony Xperia SP (extract it from rar): 
S1Boot_R11B023_HWID7E50E1.rar 320K
2262 downloads
5. In S1tool choose S1 EMERGENCY mode, press Flash button, select Sony Xperia SP 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, perform all steps from point 3 (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, ELABEL).
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 prohibited.
Attached Files
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s1tool.exe 2.52MB
7233 downloads
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S1Tool.jpg 95.21K
87 downloads
