1) Check your version on your phone by pressing *#0000#
You will see your current softwareversion (currently probably 10.something and that's why you are on this page). The model probably is N97 and the type RM-507.
It is also important you have already installed the PC suite.
2) download the new firmware via Navifirm
Run it (start-up takes a while, it retrieves data from the internet) and select the version that you want to download. Make sure that you know which firmware you want to download.
A list of all the product codes (and the ones which are already updated can be obtained here)
3) Store the files that you have downloaded in following folder:
C:\Program Files\Nokia\Phoenix\Products\RM-507
where RM-507 is equal to the code that you retrieved in step 1
You now have possession of the part that you need to upload to your phone!
To be able to flash this on your phone you need toinstall and get J(ust) A(nother) F(lasher) working
Download JAF version 1.92.62 here, and in order to get it working download OMG JAF PKEY Emulator v5: here
version 1.92.62 does not know the N97, so 1.92.64 can be downloaded. You don't need the .exe file just the .ini files. So download JAF version 1.92.64 here and only put the .ini files in the directory where you installed version 1.92.62
When this is done, open OMG JAP PKEY Emulator v5. After pressing go without changing any setting you should get JAF running.
You first get an error message that Box drivers are not installed. This is OK as you don't have a box. If you get a query regarding installing new drivers keep the ones you currently have (those you got when installing the OVI suite and they are perfect)
Press BB5, now we need to tell the programm where to get the new flash files.
First select: dead USB (even if your phone is still working)
Manual flash , factory set and normal mode.
If your phone is still working you can press .ini when it's connected. It will automatically know where your You can do this by connecting your phone and press: use ini, or when it's dead press the buttons MCU , PPM,CNT and APE one by one.
You should point them to your directory
MCU Flash file: C:\Program Files\Nokia\Phoenix\Products\RM-507\RM-507_11.2.021_prd.core.C00
PPM Flash file: C:\Program Files\Nokia\Phoenix\Products\RM-507\RM-507_11.2.021_prd.rofs2.V28 (SWAP the file from RM-505_11.0.021_prd.rofs2.V26 and rename it to RM-507_11.2.021_prd.rofs2.V28)
CNT Flash file: C:\Program Files\Nokia\Phoenix\Products\RM-507\RM-507_11.2.021_C01_prd.rofs3.fpsx
APE Variant file: C:\Program Files\Nokia\Phoenix\Products\RM-507\RM505_507_11.0.021_uda9_001.uda.fpsx
Also make sure you click the option: Change also product code and uncheck CRT 308.
Now make sure your phone is switched off and battery is in! Now take out the part that goes into your phone untill the program tells you to switch on your phone after you pressed FLASH.
When you press flash you first get an warning message to tell you you shoud never downgrade, when you click that away you should connect your phone afterwards.
Flashing will start and your phone will be on the new software!!
. Remove nó ko mất ngay lúc đó đâu nhưng bãn out ra màn hình chủ hoặc lần sau cần add vô lại là thấy nó bỏ icon đó rồi 
