[Sony Ericsson Xperia Neo, Pro] the_neo_v_guy:
Since i see many people having problems with installing cm9 on neo v, i've decided to help them

If you're a noob, have a look at this http://xdaforums.com/showthread.php?t=1409269

If you're not a noob, proceed with the steps confirming that you have performed the steps

PLEASE FOLLOW THE STEPS CAREFULLY

THE REFERENCE LINKS GIVEN ARE ONLY MEANT FOR READING AND INFORMATION PLEASE DONT FOLLOW THEIR INSTRUCTIONS TO DO SOMETHING TO YOUR PHONE. :)

Step 1

: PREPARE YOUR COMPUTER

http://www.youtube.com/watch?v=Khrxo0-NieM

it will explain a lot please watch it, download links are below

thanks for the video....

Downloads:

1)Android SDK- http://developer.android.com/sdk/index.html

2)ADB Drivers- http://www.mediafire.com/?6u1zl54w3jnvvax (just open the .cat files(x86/x64) and the drivers will be installed )

3)After watching the video, download (http://www.mediafire.com/?4qoenin9cjn7s7i) fastboot and place(copy paste) the 3 files in your android sdk directory>platform-tools(for me its C:\androidSDK\platform-tools)

if platform tools is not present, please follow the video again you have to instll "tools" package in SDK.

4)Flashtool- http://androxyde.github.com/ -go to the installation tab and download it (130 mb)

Step 2

: ROOT THE PHONE

If you have no idea about rooting, have a look at this http://droidlessons.com/what-is-rooting-on-android-the-advantages-and-disadvantages/

How to know that you are rooted-lookout for "superuser" app in app drawer, if found, you have rooted your phone. :)

if you are on official ICS 4.0.3 ,

1)[ requirements ]

a)stock ICS firmware 4.1.A.0.562 for your device

b)ADB drivers installed (if u are not sure, then install http://icxperia.com/doomlord/Flashtool-drivers.exe)

c)the tool http://bit.ly/ert_xperia_2011_ics_1

2)[ READ THE FOLLOWING CAREFULLY! ]

This script will:

root ur device using "andorid emulator" trick

install Busybox (1.18.4)

install SU files (ICS specific)

do some checks for free space, tmp directory (will remove Google Maps if required)

Before u begin:

make sure u have installed adb drivers for ur device

enable "USB DEBUGGING" - from (Menu\Settings\Developer Options\Development)

enable "UNKNOWN SOURCES" - from (Menu\Settings\Security)

[OPTIONAL] increase screen timeout to 10 minutes

connect USB cable to PHONE and then connect to PC

skip "PC Companion Software" prompt on device

3)[ WARNING ]

make sure that no other adb server is running in background (e.g.: Flashtool, PCC, SEUS) and disable any antivirus

4)[ how to install? ]

Connect your phone in MSC (mass storage mode) mode(SD card can be viewed on PC)

make sure that you are on stock ICS firmware 4.0.3

download the files

extract ALL the files in the zip

now just double click on "runme.bat"

sit back read the on screen instructions

the device will reboot a couple of times

when the script finishes it will say "ALL DONE"

enjoy!

If you're on Official ICS 4.0.4 ,

1)Make sure that you have flashtool installed and that you're on official ICS 4.0.4

2)You'll have to flash baseband of 4.0.3

a)Download the 4.0.3 baseband - http://www.mediafire.com/?gwe739kn5mcx56t and place the .ftf file in C:\Flashtool\firmwares

b)connect phone inMSC (mass storage mode) mode

c)open flashtool and wait for a minute

d)on top left, click the lightning icon

e)flash mode>ok

f)select MT11i(devices), 4.1.A.0.562 (version)

g)make sure that wipe cache and app log is unchecked,dont exclude anything.

h)press ok and follow the steps

i)phone will boot once flashed(may take longer to boot, dont panic)

j)voilla!! now you're on 4.0.3

3)Now scroll up and follow the same steps for 4.0.3

4)runme.bat will root the phone

5)Enjoy the rooted phone!!!!

My thanks to doomlord and madfysh

IMPORTANT !!!!!!

ONCE ROOTED,

Download https://play.google.com/store/apps/details?id=com.keramidas.TitaniumBackup&hl=en and backup all your apps(on SD card)

Step 3(next step) of this post will reset(factory reset) your phone.

BACKUP ALL YOUR CONTACTS AND CALENDER ON GOOGLE

BACKUP ALL YOUR MESSAGES AND IMPORTANT STUFF !!

MAKE A BACKUP OF YOUR SD CARD ON PC FOR SAFETY (THIS WILL BE DONE AFTER ALL BACKUPS ARE DONE I.E. LAST BACKUP)

Step 3:

UNLOCK BOOTLOADER

If you have no idea about this, read this

Why exactly is this a big deal? For the general population, this doesn’t matter. However, for the modding community, locked bootloaders are simply a pain. When the bootloader is locked, certain portions of the device are unable to be customized such as recoveries or kernels. A lot of the time, when rooting a device, the first step requires the bootloader to be unlocked or bypassed. So, depending on the device in question and the will of the developer, creative Android hacking has allowed some devices with locked bootloaders to run custom ROMs. Generally, these devices aren’t as stable as they could be if the device was able to be completely customized from the ground up.

1) http://unlockbootloader.sonymobile.com/ and follow the steps carefully ( skip step 13, we've already done that ;) )

IF YOU GET STUCK ON STEP 14,DO THIS

to navigate to android SDK folder, use this command(without quotes)

"cd location_of_your_android_SDK\platform-tools"

for me, it was - "C:\androidSDK\platform-tools"

2)If you followed the rules, you will have an unlocked bootloader

3)Yipeeee !!! :cool:

4)Dont worry about your apps, they're still on your SD card

5)Restore only the apps which are very important and you cant live without them for a day.. :P

Step 4:

INSTALLING CWM(CLOCK WORK MOD / RECOVERY)

if you dont know what cwm is, just read but dont follow the steps to install it

http://www.addictivetips.com/mobile...-and-how-to-use-it-on-android-complete-guide/

1) http://www.mediafire.com/?73xv18tht0e8zt4 download cwm

2)Connect your phone in MSC (mass storage mode) mode and wait until SD card available to PC

3)increase your display time out to 2 minutes

4)Enable USB debugging and allow 3rd party/unknown sources

5)open the downloaded folder(extract first)

6)Run install-cwm1.cmd

7)sit back and enjoy!!!

8)once finished, you'll have cwm installed!!!!

9)to check if you have cwm, turn off phone

10)turn on and when sony logo appears, repeatedly press vol down button until you reach a blue colored menu, if successful, cwm is installed properly!! if not, please comment or reinstall it.

11)navigation in cwm-

go up-vol up

go down-vol down

select option-home button

previous menu-back button

thanks siddharthsure93

Step 5:

TAKING A NANDROID BACKUP

if you have no idea about this, read this

http://forum.cyanogenmod.com/topic/38468-nandroid-backup-what-is-it-and-did-i-need-it/

make sure that your sd card has at least 1gb free space and you have 50% battery charge

1)Hoping that you have cwm installed, turn off phone

2)Enter cwm by repeatedly press vol down button when sony logo appears

3)go to "backup and restore"

4)select "backup"

5)wait for 10-15 minutes till your phone is backuped

6)now you have a copy of your current phone and rom memory

we do this to restore phone if something goes wrong

NOW YOU HAVE PREPARED YOUR PHONE TO GET CM9 OR ANY FU*KIN ROM !!! :good::good::cool:

IF I GO WRONG SOMEWHERE, PLEASE CORRECT ME :) WE ALL LEARN FROM OUR MISTAKES.

PLEASE PRESS THE THANKS BUTTON IF I HELPED YOU :)