[XPERIA X10 Q&A, Help & Troubleshooting] ronaksworld:
I am a noob in Android and today i viewed [ROM] AOSP JB 4.2.2 - Unlock Bootloader Only (http://xdaforums.com/showthread.php?t=2197387)

1. I rooted my xperia x10i using Sony Mobile Flasher by Androxyde.

(here is the log)

22/044/2013 09:44:41 - INFO - <- This level is successfully initialized

22/044/2013 09:44:41 - INFO - Flashtool Version 0.9.13.0 built on 2013-06-04 22:50:00

22/044/2013 09:44:43 - INFO - Please connect your device into flashmode.

22/044/2013 09:44:46 - INFO - Device disconnected

22/047/2013 09:47:07 - INFO - Device connected with USB debugging off

22/047/2013 09:47:07 - INFO - For 2011 devices line, be sure you are not in MTP mode

22/047/2013 09:47:21 - INFO - Bootloader unlock canceled

22/047/2013 09:47:23 - INFO - Please connect your device into flashmode.

22/047/2013 09:47:29 - INFO - Device disconnected

22/047/2013 09:47:42 - INFO - Device connected in flash mode

22/047/2013 09:47:42 - INFO - Opening device for R/W

22/047/2013 09:47:43 - INFO - Reading device information

22/047/2013 09:47:43 - INFO - Phone ready for flashmode operations.

22/047/2013 09:47:43 - INFO - Current device : X10i - CB511L9GUG - 1241-3086_R1C - 1227-4612_3.0.1.G.0.75 - WORLD-1-4-8_3.0.1.G.0.75

22/047/2013 09:47:43 - INFO - Processing loader.sin

22/047/2013 09:47:43 - INFO - Checking header

22/047/2013 09:47:43 - INFO - Flashing data

22/047/2013 09:47:45 - INFO - Loader : S1_Loader_Root_f851 - Version : R4A024 / Boot version : R8A013 / Bootloader status : UNROOTABLE

22/047/2013 09:47:45 - INFO - Start Reading unit 00000851

22/047/2013 09:47:45 - INFO - Reading TA finished.

22/047/2013 09:47:45 - INFO - Ending flash session

22/047/2013 09:47:45 - INFO - Waiting for device to reboot

22/047/2013 09:47:45 - INFO - Waiting for device

22/047/2013 09:47:46 - INFO - Device connected in flash mode

22/047/2013 09:47:47 - INFO - Device disconnected

22/047/2013 09:47:48 - INFO - Device connected in flash mode

22/048/2013 09:48:10 - INFO - Device connected with USB debugging off

22/048/2013 09:48:10 - INFO - For 2011 devices line, be sure you are not in MTP mode

22/049/2013 09:49:06 - INFO - Device connected with USB debugging on

22/049/2013 09:49:07 - INFO - Checking root access

22/049/2013 09:49:08 - INFO - Pushing C:\Flashtool\devices\X10\blu\files\fixPart to /data/local/tmp

22/049/2013 09:49:08 - INFO - Running runfixPart as root thru sysrun

22/049/2013 09:49:09 - INFO - Successfully applied fixPart. Rebooting

22/049/2013 09:49:10 - INFO - Waiting for device

22/049/2013 09:49:11 - INFO - Device disconnected

22/049/2013 09:49:23 - INFO - Device connected with USB debugging off

22/049/2013 09:49:23 - INFO - For 2011 devices line, be sure you are not in MTP mode

22/049/2013 09:49:24 - INFO - Device disconnected

22/049/2013 09:49:25 - INFO - Device connected with USB debugging on

22/049/2013 09:49:25 - INFO - Checking root access

22/049/2013 09:49:27 - INFO - Pushing C:\Flashtool\devices\X10\blu\files\mapper_2.6.29-00054-g5f01537.ko to /data/local/tmp

22/049/2013 09:49:27 - INFO - Pushing C:\Flashtool\devices\X10\blu\files\bootwrite_semcSL to /data/local/tmp

22/049/2013 09:49:27 - INFO - Running runbootwrite as root thru sysrun

22/049/2013 09:49:28 - INFO - Successfully applied bootwrite. Bootloader should be unlocked. Rebooting

22/049/2013 09:49:30 - INFO - Device disconnected

22/049/2013 09:49:41 - INFO - Device connected with USB debugging off

22/049/2013 09:49:41 - INFO - For 2011 devices line, be sure you are not in MTP mode

22/049/2013 09:49:44 - INFO - Device connected with USB debugging on

22/049/2013 09:49:44 - INFO - Connected device : SonyEricson X10

22/049/2013 09:49:44 - INFO - Installed version of busybox : BusyBox v1.20.2-linusyang (2012-10-15 16:24:24 CST) multi-call binary.

22/049/2013 09:49:44 - INFO - Android version : 2.3.3 / kernel version : 2.6.29-00054-g5f01537 / Build number : 3.0.1.G.0.75

22/049/2013 09:49:45 - INFO - Checking root access

22/049/2013 09:49:46 - INFO - Root Access Allowed

2. After that i did the bootloader unlocked and then followed the steps mentioned in [ROM] AOSP 4.2.2

(here is the log below)

22/055/2013 09:55:06 - INFO - <- This level is successfully initialized

22/055/2013 09:55:06 - INFO - Flashtool Version 0.9.13.0 built on 2013-06-04 22:50:00

22/055/2013 09:55:11 - INFO - Device connected with USB debugging on

22/055/2013 09:55:12 - INFO - Connected device : SonyEricson X10

22/055/2013 09:55:12 - INFO - Installed version of busybox : BusyBox v1.20.2-linusyang (2012-10-15 16:24:24 CST) multi-call binary.

22/055/2013 09:55:12 - INFO - Android version : 2.3.3 / kernel version : 2.6.29-00054-g5f01537 / Build number : 3.0.1.G.0.75

22/055/2013 09:55:12 - INFO - Checking root access

22/055/2013 09:55:13 - INFO - Root Access Allowed

22/056/2013 09:56:29 - INFO - Selected es209ra / 21 / 4.2.1

22/056/2013 09:56:29 - INFO - Preparing files for flashing

22/056/2013 09:56:37 - INFO - Please connect your device into flashmode.

22/056/2013 09:56:45 - INFO - Device disconnected

22/057/2013 09:57:19 - INFO - Device connected in flash mode

22/057/2013 09:57:20 - INFO - Opening device for R/W

22/057/2013 09:57:20 - INFO - Reading device information

22/057/2013 09:57:20 - INFO - Phone ready for flashmode operations.

22/057/2013 09:57:20 - INFO - Current device : X10i - CB511L9GUG - 1241-3086_R1C - 1227-4612_3.0.1.G.0.75 - WORLD-1-4-8_3.0.1.G.0.75

22/057/2013 09:57:20 - INFO - Start Flashing

22/057/2013 09:57:20 - INFO - Using an unofficial loader

22/057/2013 09:57:20 - INFO - Processing loader_unlocked.sin

22/057/2013 09:57:20 - INFO - Checking header

22/057/2013 09:57:20 - INFO - Flashing data

22/057/2013 09:57:23 - INFO - Loader : S1_Loader_Root_f851 - Version : r4A024 / Boot version : r8A033 / Bootloader status : ROOTED

22/057/2013 09:57:23 - INFO - Disabling final data verification check

22/057/2013 09:57:23 - INFO - Processing kernel.sin

22/057/2013 09:57:23 - INFO - Checking header

22/057/2013 09:57:23 - INFO - Flashing data

22/057/2013 09:57:24 - INFO - Processing system.sin

22/057/2013 09:57:24 - INFO - Checking header

22/057/2013 09:57:24 - INFO - Flashing data

22/058/2013 09:58:09 - INFO - Processing userdata.sin

22/058/2013 09:58:09 - INFO - Checking header

22/058/2013 09:58:09 - INFO - Flashing data

22/058/2013 09:58:12 - INFO - Ending flash session

22/058/2013 09:58:12 - INFO - Flashing finished.

22/058/2013 09:58:12 - INFO - Please unplug and start your phone

22/058/2013 09:58:12 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings

22/058/2013 09:58:13 - INFO - Device connected in flash mode

22/058/2013 09:58:25 - INFO - Device disconnected

22/000/2013 10:00:04 - ERROR - Drivers need to be installed for connected device.

22/000/2013 10:00:04 - ERROR - You can find them in the drivers folder of Flashtool.

22/002/2013 10:02:11 - INFO - Device disconnected

22/003/2013 10:03:46 - ERROR - Drivers need to be installed for connected device.

22/003/2013 10:03:46 - ERROR - You can find them in the drivers folder of Flashtool.

22/005/2013 10:05:49 - INFO - Device disconnected

22/006/2013 10:06:22 - ERROR - Drivers need to be installed for connected device.

22/006/2013 10:06:22 - ERROR - You can find them in the drivers folder of Flashtool.

Its really amazing am loving the overall performance of the device but the problem is that the drivers need to be installed error all the time and i also don't know how to install gapps-jb-20130301-signed and xrecovery, before posting this i did search for at least 6hrs and it seems like greek to me.