[Upgrading, Modifying and Unlocking] rainwalker:
Always remember to BACKUP your SYSTEMs NANDROID BACKUP with CWM. * I am really not responsible for any damage to your phone; it’s all upon your responsibility. *Let me know if any edit is recommended by you.

Full tutorial is also available on my blog : iamrainwalker

Ahh! I love my ICS rom and my symphony w25. I am a perfectionist, so I took my time to study and gone throw lots of trials and errors to finalize the ICS rom. Thanks to all those Brilliant senior developers from XDA for their numerous helps and tips. I will start by providing some screenshot of the ICS rom.

Beautiful isn’t it? Now let’s start. Just make sure you read and follow everything I say from now. Upgrading process is divided in 3 steps actually:

Updating Baseband

Flashing AP(Factory) ROM

Flashing Finalized NANDROID ROM.

YOU MUST FOLLOW ALL STEPS ONE BY ONE, DO NOT DO ANYTHING YOU DON’T KNOW, IF YOU ARE A TOTAL NEWBIE, THIS IS NOT FOR YOU KIDDO. DON’T BLAIM ME FOR YOUR MISTAKES.

ICS_Stable_sw25_rom Featurs :

Fully Rooted

Updated SU and Busybox binaries

Init.d Support, busybox runpart

App2SD enabled

Super Fast :D

All Sensors working

Better Battery Life

Better Network Reception

ALL new Jelly Bean keyboard :D

Cracked PowerAmp Music Player :D

Added

And many other tweaks I can’t remember right now.

* Points to be noted

You need to enable or disable Gsensor from Settings > Display by your self, Status ber shortcut don’t work.

You need to set APN manually from Settings > More > Mobile Networks > Select Subscription > Manage Card

System is already configured for Bangladeshi Users.

Download all Files Listed below :

AP_BP_FOR_ICS_S01

o (AP+BP)_ICS_S01.7z.001 – http://www.mediafire.com/?5v5qkcd4viag8vi

o (AP+BP)_ICS_S01.7z.002 – http://www.mediafire.com/?mahtazx3jrbprtr

ASDK_Files

o installer_r20.0.3-windows.exe – http://www.mediafire.com/?p57ix4v80c3yf8f

o jdk-7-windows-i586.exe – http://www.mediafire.com/?rejrjk6rjjbq5d9

Drivers

o S01_Drivers.7z – http://www.mediafire.com/?wjhalczqtg7k1c1

S01_Flash_tools

o S01_flash_tools.7z – http://www.mediafire.com/?6mzx0bqrd6oubo7

Symphony_ICS_stable_1

o clockworkmod_rainwalker.7z.001 – http://www.mediafire.com/?uzw25cq5bk1omn4

o clockworkmod_rainwalker.7z.002 – http://www.mediafire.com/?242vkhkfi3noekc

CWM for S01

o CWM-English.rar – http://www.mediafire.com/?y0e31h55qurp3y7

7zip

o http://www.7-zip.org/

File Extraction :

Download all files in a folder like this location “F:\sym_ics\SYMICS4\”

Select files like this photo and Use 7zip to Extract.

Make use you have folders Extracted like this

Updating Baseband :

This process is pretty nasty. I made a successful Update after trying a number of times and fails, after that I installed WINDOWS XP SP3 and successfully Updated Baseband. So I would recommend you guys to Start this Upgrading Process with a Freshly Installed Windows XP. I will try to give you as much as possible visual guide.

*It is not mandatory to install Android SDK and Java Runtime.

Install “jdk-7-windows-i586.exe”

Install “installer_r20.0.3-windows.exe” , make sure you have selected options red marked in this photo when Android SDK download files.

After download complete, Go to “F:\sym_ics\SYMICS4\(AP+BP)_ICS_S01\(AP+BP)_ICS_S01\ICS_S01” This folder.

Extract “NPRG7627A.zip” by right clicking it 7-zip > Extract Here

Copy “NPRG7627A.hex” to “591357_8376_WCDMA_V0005” folder.

Switch off your phone, remove battery, SIM cards, SD card.

Place battery on your phone, Hold POWER BUTTON+VOLUME DOWN BUTTON together, you will see “QPST Entry Download”.

Now, Connect your phone to your pc.

You will see a popup like this, cancel it.

Go to your device manager and follow the procedure below :

For you the driver location will be “F:\sym_ics\SYMICS4\S01_Drivers\drivers\Driver\HK11-VB717-27\HK11-VB717-27_1.0.56\Win32\x86\free”, Click Ok, and press Next. Driver will be installed. Close it. Go to device manager and you will see something like this :

In my case i got COM3, you may have diffrent port number. Now go to “F:\sym_ics\SYMICS4\S01_flash_tools\fast_boot” and Open “fastboot1.0.2.4.exe”. You will see something like this :

Click on “BP Browse” select folder “F:\sym_ics\SYMICS4\(AP+BP)_ICS_S01\(AP+BP)_ICS_S01\ICS_S01\591357_8376_WCDMA_V0005″, Put the port number on “BP Port”, take a deep breath and press Download, download should start if everthing is allright, after download compleate “fastboot1.0.2.4.exe” will close by itself. and you need to pull your phone bettery to shut it down and disconnect the phone form your pc.

AP Upload :

Place your phone battery on the phone, press POWER BUTTON + VOLUME UP and wait untill you see a GREEN display on your phone.

Connect you phone and you will see a new Device is found named Android, now install the drivers by following procedure like prevoiusly shown and use the folder “F:\sym_ics\SYMICS4\S01_Drivers\drivers\Driver\adb_driver” for drivers.

After driver instlation compleate, go to “F:\sym_ics\SYMICS4\S01_flash_tools\EMMC_AP” and open “QUALFAST2.0.4(Factory).exe”

Click on “SEL PATH” button and select “F:\sym_ics\SYMICS4\(AP+BP)_ICS_S01\(AP+BP)_ICS_S01\ICS_S01\TBW591357_9999_V0001_2″ folder click ok. you will see :

Now press “OK” and wait for first “Waiting Decices…” to compleate and then disconnect the phone, pull your battery and start your phone. ICS should start with creepy forign language.

Flashing Finalized Stable NANDROID ROM :

Default firmware rom do not come with CWM installed as recovery, so we need to port it now. This is a pretty simple procedure.

Download CWM-English.rar from This link : http://www.mediafire.com/?y0e31h55qurp3y7

Copy it to “F:\sym_ics\SYMICS4\”

Extract using 7-zip > Extract Here.

Shutdown your phone, insert your sim and sd card. Press POWER BUTTON + VOLUME UP button till the GREEN display appears.

Connect your phone with the pc.

Open Command prompt and type :cd F:\sym_ics\SYMICS4\CWM-English (press enter)Fastboot devices (press enter)

You should see something like “???????????? fastboot” Now type :fastboot boot recovery-english.img (press enter)

Wait sometime, CWM recovery should boot.

Now, from the menu, Select “wipe data/factory reset”

After finishing slect “wipe cache partition”

After that, go to “mount & Storage” > “Mount Usb Drive”

Now sd card will be mounted on your pc. Copy “F:\sym_ics\SYMICS4\clockworkmod_rainwalker\ clockworkmod” to your sd card.

Select “Unmount” from your phone. And Select “Go back”

Select “Backup and Restore”

Select “Restore”

Select “ICS_W25_Stable” and confirm, wait for restore to complete, then reboot.

Yah! You are now on ISC stable. Enjoy.

Helpful Links :

Driver Installation Video : https://vimeo.com/55837968

Another Baseband Update Guide : http://xdaforums.com/showthread.php?t=2036053

XDA foram Thread : http://xdaforums.com/showthread.php?t=1788936

Rooting Symphony w25 : http://xdaforums.com/showthread.php?t=1818146

Thanks From the deepest corner of my heart to :

prasad12ka4 , ahmed.zunaid , vinodkbishnoi (for poviding stability of the rom) & all tose person who helped me for this achivement :)