[Xperia SP General] hard-core:
I need help as i am trying to fix my SP since couple of nights......

My Sony Sp had Resurrection-Remix LP which worked good but i wanted to downgrade to original stock rom

Stock Rom:

C5302_12.0.A.2.254_India

C5302_12.1.A.1.201_India

C5302_12.1.A.1.205_India

Flashtool Logs

27/026/2015 23:26:32 - INFO - Flashtool Version 0.9.19.8 built on 24-09-2015 22:00:00

27/026/2015 23:26:32 - INFO - Executing search strategies to find proxy selector

27/026/2015 23:26:33 - INFO - No proxy found for IE. Trying next one

27/026/2015 23:26:33 - INFO - No proxy found for firefox. Trying next one

27/026/2015 23:26:33 - INFO - No proxy found for java. Trying next one

27/026/2015 23:26:34 - INFO - Syncing devices from github

27/026/2015 23:26:34 - INFO - Cloning devices repository

27/055/2015 23:55:25 - INFO - Devices sync finished.

27/055/2015 23:55:40 - INFO - Device connected in fastboot mode

28/000/2015 00:00:05 - INFO - Selected Bundle for Sony Xperia SP (C5302). FW release : 12.1.A.1.205. Customization : India

28/000/2015 00:00:05 - INFO - Preparing files for flashing

28/000/2015 00:00:18 - INFO - Device disconnected

28/000/2015 00:00:32 - INFO - Device connected in flash mode

28/001/2015 00:01:16 - INFO - Device disconnected

28/001/2015 00:01:26 - INFO - Please connect your device into flashmode.

28/002/2015 00:02:52 - INFO - Device connected in flash mode

28/002/2015 00:02:52 - INFO - Opening device for R/W

28/002/2015 00:02:52 - INFO - Device connected in flash mode

28/002/2015 00:02:53 - INFO - Reading device information

28/002/2015 00:02:53 - INFO - Phone ready for flashmode operations.

28/002/2015 00:02:53 - INFO - Opening TA partition 2

28/002/2015 00:02:53 - INFO - Current device : Unknown: Jan 19 2014/22:13:32 - CB51244PL8 - Unknown: Jan 19 2014/22:13:32 - Unknown: Jan 19 2014/22:13:32 - Unknown: Jan 19 2014/22:13:32

28/002/2015 00:02:53 - INFO - Closing TA partition

28/002/2015 00:02:53 - INFO - Start Flashing

28/002/2015 00:02:53 - INFO - Processing loader.sin

28/002/2015 00:02:53 - INFO - Checking header

28/002/2015 00:02:53 - INFO - Flashing data

28/002/2015 00:02:54 - INFO - Loader : S1_Root_7054 - Version : R5G006 / Boot version : R11B023 / Bootloader status : ROOTED

28/002/2015 00:02:54 - INFO - Max packet size set to 64K

28/002/2015 00:02:55 - INFO - Making a TA backup

28/002/2015 00:02:55 - INFO - Opening TA partition 1

28/002/2015 00:02:55 - INFO - Start Dumping TA partition 1

28/003/2015 00:03:00 - INFO - Finished Dumping TA partition 1

28/003/2015 00:03:01 - INFO - TA partition 1 saved to C:\Users\ARJUN\.flashTool\registeredDevices\CB51244PL8\s1ta\2015-10-27_12-02-55\1.ta

28/003/2015 00:03:01 - INFO - Closing TA partition

28/003/2015 00:03:01 - INFO - Opening TA partition 2

28/003/2015 00:03:01 - INFO - Start Dumping TA partition 2

28/003/2015 00:03:02 - INFO - Finished Dumping TA partition 2

28/003/2015 00:03:02 - INFO - TA partition 2 saved to C:\Users\ARJUN\.flashTool\registeredDevices\CB51244PL8\s1ta\2015-10-27_12-02-55\2.ta

28/003/2015 00:03:02 - INFO - Closing TA partition

28/003/2015 00:03:05 - INFO - Ending flash session

28/003/2015 00:03:05 - ERROR -

28/003/2015 00:03:05 - ERROR - Error flashing. Aborted

28/003/2015 00:03:06 - INFO - Device connected in flash mode

28/003/2015 00:03:07 - INFO - Device disconnected

28/003/2015 00:03:09 - INFO - Device connected in flash mode

I tried for all roms but same errors appeared

Device sticking at SONY logo