[Sony Ericsson XPERIA X10 Mini] |RA|:
Less words - Device: Sony Ericcson x10 Mini Pro. I'm using: CM7Pro, stock kernel. -> i want pass to CM72.2.0 using nAa, kernel. I've got a wrong when i was trying install kernel. (see code)

Hi all and sry for my bad english, it should be much bad as i remember correct.

At this moment i've mount on my device CM7Pro using stock Kernel. I've installed CWM and by means of it, now i'm using CM7Pro. I want something use less battery, so i want change it. I've choice CM7 2.2.0.

But every time i try to flash nAa kernel i got this answer:

21/009/2012 04:09:08 - INFO - <- This level is successfully initialized
21/009/2012 04:09:08 - INFO - Flashtool Version 0.6.9.1 built on 2012-04-09 19:22:19
21/009/2012 04:09:08 - INFO - You can drag and drop ftf files here to start flashing them
21/009/2012 04:09:13 - INFO - Device connected with USB debugging on
21/009/2012 04:09:14 - INFO - Connected device : U20
21/009/2012 04:09:14 - INFO - Installed version of busybox : BusyBox v1.19.1-cm71 bionic (2011-09-01 04:24 +0200) multi-call binary.
21/009/2012 04:09:14 - INFO - Android version : 2.3.7 / kernel version : 2.6.29
21/009/2012 04:09:14 - INFO - Root Access Allowed
21/009/2012 04:09:18 - INFO - Flash canceled
21/010/2012 04:10:33 - INFO - Selected X10_V1_BLRelock.ftf
21/010/2012 04:10:33 - INFO - Preparing files for flashing
21/010/2012 04:10:34 - INFO - Please connect your device into flashmode.
21/011/2012 04:11:07 - INFO - Device disconnected
21/011/2012 04:11:10 - INFO - Device connected in flash mode
21/011/2012 04:11:10 - INFO - Opening device for R/W
21/011/2012 04:11:10 - INFO - Reading device information
21/011/2012 04:11:10 - INFO - Phone ready for flashmode operations.
21/011/2012 04:11:10 - INFO - Start Flashing
21/011/2012 04:11:10 - INFO - Flashing loader
21/011/2012 04:11:10 - INFO - Ending flash session
21/011/2012 04:11:10 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ER R_DYNAMIC="SIN header verification failed"
21/011/2012 04:11:10 - ERROR - Error flashing. Aborted
21/011/2012 04:11:10 - INFO - Device connected in flash mode
21/011/2012 04:11:23 - INFO - Device disconnected
21/015/2012 04:15:33 - INFO - Device connected with USB debugging on
21/015/2012 04:15:33 - INFO - Connected device : U20
21/015/2012 04:15:34 - INFO - Installed version of busybox : BusyBox v1.19.1-cm71 bionic (2011-09-01 04:24 +0200) multi-call binary.
21/015/2012 04:15:34 - INFO - Android version : 2.3.7 / kernel version : 2.6.29
21/015/2012 04:15:34 - INFO - Root Access Allowed
21/015/2012 04:15:51 - INFO - Device disconnected
21/016/2012 04:16:01 - INFO - Device connected with USB debugging off
21/016/2012 04:16:01 - INFO - For 2011 devices line, be sure you are not in MTP mode
21/016/2012 04:16:43 - INFO - Device disconnected
21/016/2012 04:16:49 - INFO - Device connected with USB debugging off
21/016/2012 04:16:49 - INFO - For 2011 devices line, be sure you are not in MTP mode
21/017/2012 04:17:09 - INFO - Device disconnected
21/017/2012 04:17:16 - INFO - Device connected with USB debugging on
21/017/2012 04:17:16 - INFO - Connected device : U20
21/017/2012 04:17:16 - INFO - Installed version of busybox : BusyBox v1.19.1-cm71 bionic (2011-09-01 04:24 +0200) multi-call binary.
21/017/2012 04:17:16 - INFO - Android version : 2.3.7 / kernel version : 2.6.29
21/017/2012 04:17:17 - INFO - Root Access Allowed
21/022/2012 04:22:06 - INFO - Selected X10_V1_BLRelock.ftf
21/022/2012 04:22:06 - INFO - Preparing files for flashing
21/022/2012 04:22:06 - INFO - Please connect your device into flashmode.
21/022/2012 04:22:12 - INFO - Device disconnected
21/022/2012 04:22:39 - INFO - Device connected in flash mode
21/022/2012 04:22:40 - INFO - Opening device for R/W
21/022/2012 04:22:40 - INFO - Reading device information
21/022/2012 04:22:40 - INFO - Phone ready for flashmode operations.
21/022/2012 04:22:40 - INFO - Start Flashing
21/022/2012 04:22:40 - INFO - Flashing loader
21/022/2012 04:22:40 - INFO - Ending flash session
21/022/2012 04:22:40 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ER R_DYNAMIC="SIN header verification failed"
21/022/2012 04:22:40 - ERROR - Error flashing. Aborted
21/022/2012 04:22:40 - INFO - Device connected in flash mode
21/022/2012 04:22:41 - INFO - Device disconnected
21/022/2012 04:22:44 - INFO - Device connected in flash mode

I've read much times the guide of FlashTool but i've not found answers.

Please help me about that.

Thank you all, see you.