[XPERIA X10 General] hatimak:
Thanks a lot for your response Dr Goodvibes. :good: Appreciate it.

However, I have failed to install the kernel. I followed all your instructions line by line. The flashing process is successful. On powering the phone I am greeted by the SDE logo, but I CANNOT ENTER CWM RECOVERY. Neither the blue LED flashes nor the phone vibrates. Then the LED flashes green and the phone reboots, and the same series of painful events recur. I did not face such an issue with SDE-v2.1 kernel, which flashes fine, I can boot to recovery, and install the ROM.

This is the log from flashtool after flashing SDE-v4 kernel:

06/027/2014 18:27:31 - INFO - <- This level is successfully initialized
06/027/2014 18:27:31 - INFO - Flashtool Version 0.9.10.1 built on 2013-01-09 19:49:47
06/027/2014 18:27:31 - INFO - You can drag and drop ftf files here to start flashing them
06/027/2014 18:27:36 - INFO - Device disconnected
06/027/2014 18:27:43 - INFO - Selected 2.6.32.2_Somc_Debrand_Engine_Kernel_v04_JB.ftf
06/027/2014 18:27:43 - INFO - Preparing files for flashing
06/027/2014 18:27:43 - INFO - Please connect your device into flashmode.
06/027/2014 18:27:55 - INFO - Device connected in flash mode
06/027/2014 18:27:55 - INFO - Opening device for R/W
06/027/2014 18:27:55 - INFO - Reading device information
06/027/2014 18:27:55 - INFO - Phone ready for flashmode operations.
06/027/2014 18:27:55 - INFO - Current device : X10i - CB511JNXY9 - 1237-0692_R2C - 1227-4612_3.0.1.G.0.75 - WORLD-1-4-8_3.0.1.G.0.75
06/027/2014 18:27:55 - INFO - Start Flashing
06/027/2014 18:27:55 - INFO - Processing loader
06/027/2014 18:27:55 - INFO - Using an unofficial loader
06/027/2014 18:27:55 - INFO - Checking header
06/027/2014 18:27:56 - INFO - Flashing data
06/028/2014 18:28:05 - INFO - Loader : S1_Loader_Root_f851 - Version : [B]r4A024[/B] / [B]Bootloader status : ROOTED[/B]
06/028/2014 18:28:05 - INFO - Processing kernel.sin
06/028/2014 18:28:05 - INFO - Checking header
06/028/2014 18:28:05 - INFO - Flashing data
06/028/2014 18:28:08 - INFO - Ending flash session
06/028/2014 18:28:08 - INFO - Flashing finished.
06/028/2014 18:28:08 - INFO - Please unplug and start your phone
06/028/2014 18:28:08 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
06/028/2014 18:28:09 - INFO - Device connected in flash mode
06/028/2014 18:28:23 - INFO - Device disconnected

I have an unlocked bootloader, as you can see from the highlighted line in the log.

My downloaded kernel or ROM is not faulty. The MD5 hash for kernel is 7960f2c3a7a99b25a03e9a5c8ee5236c and for ROM cecd0ad68efe7f4be79b47cf18a5eb14. I downloaded both twice and found the MD5 hashes to match exactly.

I did not forget to remove the battery at key points during the install.

I am performing all operations with at least 50% battery

I desperately want to try SDE. PLEASE HELP ME!

And, please could someone provide SDE-v3 kernel(including wi-fi fix). I am unable to access uploaded.net and I have tried unrestrict.li as well. Earlier I had used unrestrict.li to download all the ROMs and kernel from uploaded.net but now that has stopped working too. If uploading to a mirror conflicts Achotjan's interests, please PM me a temporary link. I guess, if v4 fails to work, I will have to try v3. Thanks.