[Android Q&A, Help & Troubleshooting] skirhir:
First android. Also first post so I can't use the proper thread...

My android is rooted and sim-unlocked by Omnius.

I manually installed ClockworkMod Recovery. (to do this I had to remount the /system folder as rw, don't know if this is important, but wasn't in the installation instructions).

PC companion says my firmware is the lastest

I want flash this kernel.

I think I can't unlock my bootloader...

I followed this guide to unlock the bootloader, using FlashTool or msm7227_omniusSL.cmd.

Both processes complete without errors... But when I check with s1tool, the erom version has an uppercase "R".

When I try to flash, FlashTool throws the error:

06/056/2012 20:56:22 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed"

Here are my s1tool and FlashTool logs:

s1tool:

Welcome to S1 identify tool

TO CONNECT NEXT PHONES
X10 Xperia,E10 Xperia Mini,E15 Xperia X8,U20 Xperia Mini Pro
LT15 Xperia ARC,MT15 Xperia NEO,R800 Xperia PLAY
PRESS AND HOLD "BACK" BUTTON...

PLEASE ATTACH TURNED OFF PHONE NOW

RUNNING S1_EROM VER "R8A029"
SOFTWARE AID: 0001
LOADER AID: 0001
FLASH ID: "0020/00BC"
LOADER VERSION: "R4A045"

MODEL (from GDFS): E10a
SOFTWARE VERSION: 1235-3408_2.0.A.0.504
CUSTOM VERSION: 1237-0397_R8B
FILESYSTEM VERSION: WORLD-1-2-5_2.0.A.0.504
SERIAL NO: CB511QQTMH

NOT RECOGNIZED SIMLOCK CERTIFICATE
MAYBE YOU SHOULD UNLOCK PHONE BY SETOOL2 ?
Elapsed:6 secs.

Flashtool - unlocking BL log

06/044/2012 20:44:25 - INFO - Device connected in flash mode
06/047/2012 20:47:23 - INFO - Device disconnected
06/048/2012 20:48:01 - INFO - Device connected with USB debugging on
06/048/2012 20:48:02 - INFO - Connected device : E10
06/048/2012 20:48:03 - INFO - Installed version of busybox : BusyBox v1.19.3-Stericson (2011-12-20 21:07:32 CST) multi-call binary.
06/048/2012 20:48:03 - INFO - Android version : 2.1-update1 / kernel version : 2.6.29
06/048/2012 20:48:06 - INFO - Root Access Allowed
06/048/2012 20:48:19 - INFO - Remounting system read-write
06/048/2012 20:48:21 - INFO - Pulling system/build.prop to C:\Flashtool\custom\features\Optimize\files\E10\build.prop.orig
06/049/2012 20:49:04 - INFO - Please connect your device into flashmode.
06/049/2012 20:49:32 - INFO - Please connect your device into flashmode.
06/049/2012 20:49:35 - INFO - Device disconnected
06/049/2012 20:49:46 - INFO - Device connected in flash mode
06/049/2012 20:49:46 - INFO - Opening device for R/W
06/049/2012 20:49:46 - INFO - Reading device information
06/049/2012 20:49:46 - INFO - Phone reading for flashing.
06/049/2012 20:49:46 - INFO - Start Reading property
06/049/2012 20:49:46 - INFO - Reading property finished.
06/049/2012 20:49:46 - INFO - Found omniusSL
06/049/2012 20:49:46 - INFO - You can now unplug and turn on device, then plug it again
06/049/2012 20:49:46 - INFO - Waiting for device
06/049/2012 20:49:47 - INFO - Device connected in flash mode
06/050/2012 20:50:12 - INFO - Device disconnected
06/051/2012 20:51:18 - INFO - Device connected with USB debugging on
06/051/2012 20:51:20 - INFO - Pushing C:\Flashtool\custom\features\UnlockBL\files\my7227\my7227bootwrite_omniusSL to /data/local/tmp
06/051/2012 20:51:21 - INFO - Pushing C:\Flashtool\custom\features\UnlockBL\files\my7227\mapper_2.6.29.ko to /data/local/tmp
06/051/2012 20:51:21 - INFO - Pushing C:\Flashtool\custom\features\UnlockBL\files\my7227\fixPart to /data/local/tmp
06/051/2012 20:51:21 - INFO - Running runfixPart as root thru sysrun
06/051/2012 20:51:21 - INFO - Successfully applied fixPart. Rebooting
06/051/2012 20:51:22 - INFO - Waiting for device
06/051/2012 20:51:23 - INFO - Device disconnected
06/051/2012 20:51:40 - INFO - Device connected with USB debugging off
06/051/2012 20:51:40 - INFO - For 2011 devices line, be sure you are not in MTP mode
06/051/2012 20:51:42 - INFO - Device connected with USB debugging on
06/052/2012 20:52:08 - INFO - Running runbootwrite as root thru sysrun
06/052/2012 20:52:10 - INFO - Successfully applied unlock. Rebooting
06/052/2012 20:52:11 - INFO - Running runClean as root thru sysrun
06/052/2012 20:52:15 - INFO - Device disconnected

Flashtool - upgrading kernel log

06/056/2012 20:56:21 - INFO - Selected E10_nAa-10_2.6.29.6-nAa-10.ftf
06/056/2012 20:56:21 - INFO - Preparing files for flashing
06/056/2012 20:56:21 - INFO - Please connect your device into flashmode.
06/056/2012 20:56:21 - INFO - Opening device for R/W
06/056/2012 20:56:21 - INFO - Reading device information
06/056/2012 20:56:21 - INFO - Phone reading for flashing.
06/056/2012 20:56:22 - INFO - Start Flashing
06/056/2012 20:56:22 - INFO - Flashing loader
[COLOR="Red"]06/056/2012 20:56:22 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed"[/COLOR]

Both BL unlocking methods were repeted several times, with equal logs...

Any help with this?