Here is a short tutorial for modding and flashing S^3 phones using Nokia N8 as reference
First of all the tools needed for cfw are :
1.
NaviFirm+ by Il.Socio - You are not allowed to view links.
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Nokia Cooker by Il.Socio - You are not allowed to view links.
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NFE Core 2 (English) by doctorly - You are not allowed to view links.
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Phoenix (2011.14.004.45945) - You are not allowed to view links.
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LoginWARNING : FIRMWARE MODDING AND FLASHING IS NOT COVERED BY WARRANTY AND IS VERY RISKY, SO PLEASE PROCEED AT YOUR OWN RISK
I'VE TRIED MY BEST TO MAKE THIS GUIDE AS SIMPLE AND ACCURATE AS POSSIBLE, BUT IF ANY MISTAKE IS FOUND PLEASE CORRECT ME
ANY SUGGESTIONS ARE MORE THAN WELCOME
FIRST STEPDownload the firmware files using
NaviFirm+Open NaviFirm+
#1 Make sure that "Nokia Care Suite" has been selected as the "Server"
#2 Select the "Product"
#3 Select the "Release"
#4 Select the "Variant"
#5 Make sure "Parse VPL" has been ticked and then verify that all necessary fw files are selected for download
#6 Select the "Files". The needed files are :
core,
rofs2,
rofs3,
uda,
dcp,
vpl,
bin (uda must be ticked manually). You may also download the "Memory card Content" if you want the preloaded content.
#7 Then click on "Download from FiRe" to download directly or copy the URLs and download them manually

After download is complete, make a backup of all the downloaded files in a safe place should anything go wrong with modding and flashing. Later on these original files can be used to re-flash the phone if needed.
SECOND STEPEdit the fw files using
Nokia Cooker (The backup files should not be used for editing)
Open Nokia Cooker
#1 Open the required file by clicking on "Open Firmware" (Only rofs2, rofs3 and uda can be edited using Nokia Cooker)
Alternatively you can just drag the required file to the left pane named "Custom Firmwares"
#2 A couple of seconds later the right pane will display the firmware file contents. Now drag and drop the mods u need in this pane
#3 When finished adding mods and making changes click on the "Save Firmware" button
#4 The bottom pane will display the log since the opening of the file

The firmware will be repacked in the original folder and the original files will now have a suffix "_BACKUP_" in it
Repeat the steps for the other files if needed (i used the rofs2, so if needed changes can be made to rofs3 and uda in the same manner)
THIRD STEPCalibrate the core using
NFE Core 2 (Many many thanks to
nicesoni_ash, without him i would've been stuck with a dead phone after flash with modded rofs files)
Open NFE Core 2
#1 Click on the "Open" button and select the core file to be calibrated
#2 After the file is initialized click on the "ROFS calibration" button
#3 A popup window appears, change all values to "2C"
#4 Click on "Apply"
#5 Click on "Exit"
Nothing else needs to be done in the core fileFOURTH STEPFlashing the phone with the modded files using
Phoenix (Thanks to
nicesoni_ash again, this procedure is entirely based on his method as he posted as a document)
IMPORTANT
#1 BEFORE FLASHING, EVERY IMPORTANT DATA FROM THE PHONE SHOULD BE BACKED UP
#2 THE MASS STORAGE CONTENT SHOULD BE BACKED UP TOO, AND IT SHOULD BE FORMATTED
#3 IF NOT FORMATTED DELETE THE SYSTEM FOLDERS FROM MASS STORAGE
#4 THE PHONE SHOULD BE SWITCHED OFF BEFORE STARTING FLASH
#5 PHONE SHOULD NOT BE CONNECTED TO COMPUTER UNLESS INSTRUCTED BY THE FLASHING SOFTWARE
Open Phoenix
Now follow the pictorial instructions

Now bring all the original downloaded firmware files into the above mentioned folder
To do this, create a folder named "RM-xxx" inside the above mentioned folder, where xxx is the device's number, and paste the files inside this folder
According to the example the files should be in this folder now - "C:\Program Files\Nokia\Phoenix\RM-xxx\"
Now follow the rest of the guide...











This guide is finishedCredits to the greatest people in the Symbian scene, thank you CODeRUS, Il.Socio, Doctorly, PNHT
I hope this guide helps everyone
