[Sony Xperia C5 Ultra] arjun.arora:
I have E5563, latest flashtool installed. I have tried both the service exchange unit fw as well as the Customised HK fw.

The full error is as follows.

03/029/2015 16:29:55 - INFO - Selected Bundle for Sony Xperia C5 Ultra (E5563). FW release : 29.0.B.0.161. Customization : Xperia C5 Ultra Dual

03/029/2015 16:29:55 - INFO - Preparing files for flashing

03/031/2015 16:31:05 - INFO - Please connect your device into flashmode.

03/031/2015 16:31:13 - INFO - Device connected in flash mode

03/031/2015 16:31:14 - INFO - Opening device for R/W

03/031/2015 16:31:14 - INFO - Reading device information

03/031/2015 16:31:14 - INFO - Phone ready for flashmode operations.

03/031/2015 16:31:14 - INFO - Opening TA partition 2

03/031/2015 16:31:14 - INFO - Current device : E5563 - WUJ01KGW0Y - 1298-2220_R6A - 1295-8228_29.0.B.1.55 - GENERIC_29.0.B.1.55

03/031/2015 16:31:14 - INFO - Closing TA partition

03/031/2015 16:31:14 - INFO - Start Flashing

03/031/2015 16:31:14 - INFO - Processing loader.sin

03/031/2015 16:31:14 - INFO - Checking header

03/031/2015 16:31:14 - INFO - Flashing data

03/031/2015 16:31:14 - INFO - Loader : S1_Root_4154 - Version : MT67X2_19 / Boot version : S1_Boot_MT6752_TC9SP_16 / Bootloader status : ROOTABLE

03/031/2015 16:31:14 - INFO - Max packet size set to 8192K

03/031/2015 16:31:18 - INFO - Making a TA backup

03/031/2015 16:31:19 - INFO - Opening TA partition 1

03/031/2015 16:31:19 - INFO - Start Dumping TA partition 1

03/031/2015 16:31:19 - INFO - Finished Dumping TA partition 1

03/031/2015 16:31:20 - INFO - TA partition 1 saved to C:\Users\Arjun Arora\.flashTool\registeredDevices\WUJ01KGW0Y\s1ta\2015-11-03_04-31-19\1.ta

03/031/2015 16:31:20 - INFO - Closing TA partition

03/031/2015 16:31:20 - INFO - Opening TA partition 2

03/031/2015 16:31:20 - INFO - Start Dumping TA partition 2

03/031/2015 16:31:20 - INFO - Finished Dumping TA partition 2

03/031/2015 16:31:20 - INFO - TA partition 2 saved to C:\Users\Arjun Arora\.flashTool\registeredDevices\WUJ01KGW0Y\s1ta\2015-11-03_04-31-19\2.ta

03/031/2015 16:31:20 - INFO - Closing TA partition

03/031/2015 16:31:20 - INFO - Parsing boot delivery

03/031/2015 16:31:20 - INFO - No flash script found. Using 0.9.18 flash engine

03/031/2015 16:31:20 - INFO - Opening TA partition 2

03/031/2015 16:31:20 - INFO - Writing TA unit 00002774. Value : [01]

03/031/2015 16:31:20 - INFO - Closing TA partition

03/031/2015 16:31:20 - INFO - Processing partitions.sin

03/031/2015 16:31:20 - INFO - Checking header

03/031/2015 16:31:20 - INFO - Flashing data

03/031/2015 16:31:20 - INFO - Phone boot version : S1_Boot_MT6752_TC9SP_16. Boot delivery version : 1292_1556 S1_Boot_MT6752_TC9SP_12

03/031/2015 16:31:20 - INFO - Going to flash boot delivery

03/031/2015 16:31:20 - ERROR - missing

03/031/2015 16:31:20 - INFO - Some files are missing from your boot delivery

03/031/2015 16:31:21 - INFO - Opening TA partition 2

03/031/2015 16:31:21 - INFO - Processing boot.sin

03/031/2015 16:31:21 - INFO - Checking header

03/031/2015 16:31:21 - INFO - Flashing data

03/031/2015 16:31:21 - ERROR - Processing of boot.sin finished with errors.

03/031/2015 16:31:21 - INFO - Ending flash session