[XPERIA X10 Q&A, Help & Troubleshooting] KDS01:
Yes thats the one im talking about :)

Im unlocked on bootloader and ive done the drivers, and copied the firmware.

Ive clicked flash and follwed what you said to do and the flashtool comes up with:

20/034/2013 21:34:21 - INFO - Device connected in flash mode

20/034/2013 21:34:22 - INFO - Device disconnected

20/034/2013 21:34:23 - INFO - Device connected in flash mode

20/034/2013 21:34:37 - INFO - Selected SemcDebrandEngine.ftf

20/034/2013 21:34:37 - INFO - Preparing files for flashing

20/034/2013 21:34:37 - INFO - Please connect your device into flashmode.

20/034/2013 21:34:37 - INFO - Opening device for R/W

20/034/2013 21:34:37 - INFO - Reading device information

20/034/2013 21:34:38 - INFO - Unable to read from phone after having opened it.

20/034/2013 21:34:38 - INFO - trying to continue anyway

20/034/2013 21:34:38 - INFO - Start Flashing

20/034/2013 21:34:38 - INFO - Processing loader

20/034/2013 21:34:38 - INFO - Checking header

20/034/2013 21:34:38 - INFO - Ending flash session

20/034/2013 21:34:38 - ERROR - Error in processHeader : 31 : A device attached to the system is not functioning.

20/034/2013 21:34:38 - ERROR - Error flashing. Aborted

20/034/2013 21:34:38 - INFO - Device connected in flash mode

20/034/2013 21:34:46 - INFO - Device connected with USB debugging off

20/034/2013 21:34:46 - INFO - For 2011 devices line, be sure you are not in MTP mode

20/034/2013 21:34:53 - INFO - Device disconnected

its also come up with this previously:

20/032/2013 21:32:16 - INFO - <- This level is successfully initialized

20/032/2013 21:32:16 - INFO - Flashtool Version 0.9.10.1 built on 2013-01-09 19:49:47

20/032/2013 21:32:16 - INFO - You can drag and drop ftf files here to start flashing them

20/032/2013 21:32:19 - INFO - Device disconnected

20/032/2013 21:32:22 - INFO - Device connected with USB debugging on

20/032/2013 21:32:23 - INFO - Selected SemcDebrandEngine.ftf

20/032/2013 21:32:23 - INFO - Preparing files for flashing

20/032/2013 21:32:23 - INFO - Please connect your device into flashmode.

20/032/2013 21:32:23 - INFO - Connected device : X10

20/032/2013 21:32:23 - INFO - Installed version of busybox : N/A

20/032/2013 21:32:23 - INFO - Android version : 2.3.7 / kernel version : /data/local/tmp/busybox1: permission denied / Build number : 6.0.B.0.743

20/032/2013 21:32:23 - INFO - Phone in recovery mode

20/032/2013 21:32:23 - INFO - Root Access Allowed

20/033/2013 21:33:08 - INFO - Device disconnected

20/034/2013 21:34:20 - INFO - Device connected in flash mode

20/034/2013 21:34:20 - INFO - Opening device for R/W

20/034/2013 21:34:20 - INFO - Reading device information

20/034/2013 21:34:20 - INFO - Phone ready for flashmode operations.

20/034/2013 21:34:20 - INFO - Current device : X10i - CB511HYEN0 - 1257-5102_R4E - 1227-4612_3.0.1.G.0.75 - WORLD_6.0.B.0.743

20/034/2013 21:34:20 - INFO - Start Flashing

20/034/2013 21:34:20 - INFO - Processing loader

20/034/2013 21:34:20 - INFO - Checking header

20/034/2013 21:34:20 - INFO - Ending flash session

20/034/2013 21:34:20 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed"

Then the xperia x10 just returns to the same techdevil bootscreen and wont let me get back into the CWM recovery.