Sourav-21

Also, I find in the service menu that-

Rooting status:

Bootloader unlock allowed: No

Please suggest me how to solve this problem.

Thanks, Mobile switched on and running fine.

But after recovered from hard brick I face a new problem. There is no fastboot mode, only flash mode. If I press the volume up button and connect with USB, no blue light is showing. It only shows red light and connected as charging mode. The flash mode (volume down) working fine as expected. 

Welcome S1 Tool [19.05.2015].
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
 
UNEXPECTED COMMAND 01000000
Elapsed:20 secs.
 
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
 
UNEXPECTED COMMAND 01000000
Elapsed:13 secs.

EDL mode

S1 flash mode logs

PLEASE ATTACH TURNED OFF PHONE NOW
Waiting for phone ...
 
RUNNING S1_BOOT VER "R11B023"
LOADER AID: 0001
[ llcomm: 00010000,00080000 ]
DEVICE ID: 59663104
FLASH ID: "0003/000000FE"
LOADER VERSION: "R5G008"
 
WRITING PACKAGES ...
Processing package
C:\Users\soura\Desktop\APPSW.SIN_FILE_SET
 
Processing ACPU files
PROCESSING: apps_log.sin
PROCESSING: cache.sin
PROCESSING: fotakernel.sin
PROCESSING: kernel.sin
PROCESSING: partition-image.sin
ERROR [ failed_to_set_ta_config, err: 0076 ]
SIN file not accepted
Break.
ERROR [ S1_TA_Close,limited, err: 0010 ]
FINISHED
Elapsed:31 secs.

When I try to flash APPSW in S1 Emergency mode the logs are-

Welcome S1 Tool [28.02.2015].
That is small and crippled subset of SETOOL2 service tool.
 
SELECT FIRMWARE PACKAGES
YOU CAN SELECT SEVERAL PACKAGES WITH CTRL BUTTON
CHECKING PACKAGES ...
 
TO CONNECT NEXT PHONES
X10 Xperia,E10 Mini,E15 Xperia X8,U20 Mini Pro
LT15 Xperia ARC,MT15 Xperia NEO,R800 Xperia PLAY
PRESS AND HOLD "BACK" BUTTON...
 
ST18 Xperia RAY,ST15 Xperia Mini,SK17 Xperia Mini Pro
and Sony Xperia phone
PRESS AND HOLD "Volume Down" BUTTON...
 
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
 
UNEXPECTED COMMAND 01000000
Elapsed:9 secs.
 
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
 
UNEXPECTED COMMAND 01000000
Elapsed:16 secs.

Also, you are saying that in APPSW there is a UPDATE.xml. But I don't find any UPDATE.xml in firmware package.

If I boot in flash mode logs are-

RUNNING S1_BOOT VER "R11B023"
LOADER AID: 0001
can't get S1 command header
LOADER NOT RESPONDING
Elapsed:41 secs.

Sir, According to your instructions I first flash S1Boot_R11B023_HWID7E50E1.SIN_FILE_SET file in S1 Emergency mode. After that, my Xperia SP is detected as SOMC Flash Device in device manager and also sony logo in showing when I connect the mobile with charger or PC. Flashtool, Sony Emma these tools also can detect my mobile. Then I flash the stock firmware using Androxyde's flashtool. But still my mobile is in flashmode and don't boot up. Sir, please help. What should I do?