Root Xperia Neo V/Neo ICS 4.0.4(4.1.B.0.431)

Many people have bricked their phone while rooting by unlocking their bootloaders and with unlocked bootloader the warranty gets void. But here we will show you how to root Xperia Neo/Neo V without unlocking your bootloader.
I don't take any credits as this was done by me but instead I have found it on a thread on XDA.

Please Read Before you Proceed :

1. This is only for Xperia Neo/Neo V running ICS 4.0.4(not 4.0.3) with firmware version 4.1.B.0.431.(Those having firmware version  4.1.A.0.562  follow only step 3 or wait for your phone)
2. I don't take any responsibility of your phone and you are rooting your phone at your own risk. (I have done the same and nothing has happened. The chances of something bad happening is only 5%)
3. Read each and every instruction carefully.

Procedure :

1. Flash 4.0.4(4.1.B.0.431) ICS and boot phone.
2. Flash kernel from 4.0.3(4.1.A.0.562) ICS and boot phone. Flash only kernel, don't wipe anything!
3. Download DooMLoRD's Rooting Toolkit for Xperia 2011 ICS [FW:.562]: http://forum.xda-developers.com/show....php?t=1601038
   Read instructions and root your phone
4. Flash back kernel from 4.0.4(4.1.B.0.431) ICS. Flash only kernel, don't wipe anything!
5. Congrats!!! Your phone is rooted. Now you can enjoy as much as you want with your rooted phone.

Sony Xperia 4.0.1 - Ice Cream Sandwich[official]

Here is the official update for the Sony Ericsson(presently Sony) Arc S and Neo V Phones.
It may also work on Ray.




Before you begin:

• Your phone should be running the software built version  4.0.2.A.0.42. It won't work with the built sofware 4.0.2.A.0.62(Check yours in Settings->About Phone)
• Your bootloader should be unlocked. You can also unlock the bootloader From Sony Ericsson Unlock BootLoader*.

*Unlocking your bootloader will void your warranty.

To Start Download the Rar File :

• HotFile
• SpeedyShare

Once you download the above files follow the Instructions Below:

• Extract the downloaded zip file to your Android Fastboot directory. For example: ..\android-sdk\fastboot\AndroidsRoms-Android40_SonyXperia.rar.
• Open a command prompt and go to your Fastboot directory: ..\android-sdk\fastboot\
• Flash the threeROM files one at a time using Fastboot. Use these three commands (replace the folder name if you are using Xperia™ neo V)

1. fastboot flash boot ..\Fastboot\AndroidsRoms-Android40_SonyXperia\boot.img
2. fastboot flash userdata ..\Fastboot\AndroidsRoms-Android40_SonyXperia\userdata.img
3. fastboot flash system ..\Fastboot\AndroidsRoms-Android40_SonyXperia\system.img

• Once Done reboot your phone

Attention:

• You should be an advanced developer with extensive knowledge in how to install, and switch between different ROMs. If you are a consumer without these developer skills, then we strongly recommend you not do try this as you may damage your phone.
• You Should be Using only Xperia Arc S or Xperia Neo V
• You must unlock your phone using Sony Ericsson's Unlock boot loader service, and agree to all the legal and warranty conditions that apply. Once you do this Sony Ericsson will not be responsible for anything that happens to your phone and will not be able to guaranty the full working of your phone. 

 

Install ADB Drivers for All Phones

How to Install ADB(Android Debug Bridge) on your Android Phone.

This Method will work for all phones.(Sony Ericsson,Samsung,HTC,LG,etc)

Follow the Steps:

Step 1

First of all download and install Java SE Software Development Kit (SDK). Be definite you download the package by clicking on first icon named Java Platform (JDK).

Step 2

After that download Android Software Development Kit (SDK) depending upon your OS and extract the zip content to your desktop.

Step 3

Now open the folder and then double-click on “SDK Manager”. From the packages to install list double-click on “USB Driver package, revision..”.

Step 4

You can choose to deselect all items except USB Package if you have slower internet download speed. Click “Install” and wait for the installation to finish.

Step 5

After that on your Android device go to:

Settings –>Applications—> Development

Step 6

Turn ON “USB debugging” mode. And connect the android phone to PC by using the USB connection.

Step 7

Windows will start recognizing the device. You will then see a message “Device driver software was not successfully installed”. The message varies depending the Android model and brand. Ignore the message and click “Close”.

Step 8

Instead if you see “Device installed successfully”, you are done, otherwise continue...

Step 9

Click “Start” –> right-click on “Computer”—> “Manage” (You need to have admin rights to do this on your PC). After that you need to expand the tree in left pane by clicking on System Tools –> Device Manager.

Step 10

In the right pane, expand “Other devices”. You will see a yellow exclamatory mark on the device icon. Right-click on it and select “Properties”. And just click on “Update Driver” button.

Step 11

Select “Browse my computer for driver software” and then select “Let me pick from list of device drivers on my computer”.

Step 12

Click “Next”—>“Have disk”, browse through and select “android_winusb” item as shown below.

Step 13

Click “Next”. Windows will confirm whether to update drivers. Go ahead and click “Yes”. And after that Windows should successfully finish the driver software for your android phone.

Step 14

You are done with ADB installation. To verify, connect android device to your computer and then “Start”—> right-click on “Computer”—> Manage.

In the left pane, click on “System Tools”—> “Device Manager”.

 

Root Xperia(Arc,Arc S,Neo,Neo V,Play,Pro,Ray,X10,Mini,Mini Pro)

This Tutorial Shows You how you can root the Following Phones:
Xperia Arc
Xpera Arc S
Xperia Neo
Xperia Neo V
Xperia Play
Xperia X10
Xperia Mini
Xperia Pro
Xperia Mini Pro
Xperia Ray



Instructions:

This will only work on the above listed Devices

• This will not work on Sony Firmware  4.0.2.A.0.62*
• Bootloader unlock not needed.
• Follow the onscreen Instructions Carefully.
• Install PC Companion on your PC.
• You will need ADB drivers installed for your phone(please wait for this tutorial)
• Download the Following kit that you will need for rooting:

              DooMLoRD_v3_ROOT-zergRush-busybox-su.rar

*4.0.2.A.0.62 Firmware users will have to wait for their root...It will be soon posted