I did this with my phone and now my old k750 is much newer! just thought i'd share it with you if you don't know how.
Pros
* Louder music volume; built-in speaker and headphones
* The WALKMAN media player; better organised music
* Call quality seems to be slightly better
* Low-light camera shots better (with camera mod)
* Handset worth more; higher resell value
* Free upgrade
* Several other technical updates
Cons
* You lose the activity menu, as this button is now used for the WALKMAN screen
Get your phone, unlock it (*, right screen button) and press the following keys in order:
Right, *, Left, Left, *, Left, *
A new screen should pop up with, ?Service info, Service tests and Text labels? on it. Click the ?Service info? then ?Software info? and then scroll down to the bottom.
Where it says ?Customisation? there should be a number below it; e.g. CDA102338/16 there will also be other numbers, but you only want the 8 digit (minus the CDA part) code. This is your CDA code. Write it down, this becomes important later.
Get the cable that came with your phone, this is called a DCU-60 cable.
1. Remove the battery and take out the SIM card.
2. Stick the battery back in.
3. Hold down the ?C? button.
4. Plug in the DCU-60 into the bottom of the phone *
5. Whilst still holding the ?C? button, wait for your PC to pop-up asking for your assistance in installing a ?Flash? driver.
6.You have to have the cable plugged into your PC first. You can?t have the cable plugged into your phone, and then plug it into your PC. I tried and it doesn?t work.
If in step 4 your phone turns on instead of installing a driver, take the battery out and try again from step 2. Eventually it will work.
Download the following file - it contains all the software you will need for this including the flash files [main + FS]
Now there will be 4 folders, ?FAR manger?, ?Flasher?, 'Customisation' and ?Flash files'.
Open up the ?Flasher? folder and double-click k750flasher_13.7.exe.
You now want to find the files that you need to update the phone with. Click the ??? by the Main box (this is the actual firmware file) . A dialogue box should appear. Find the folder ?Flash files?.
When the box first appears, there will be no files, you need to click the ?Files of type:? box, and select ?(*.*) All Files? now two files should appear. Select the ?W800_R1AA008_MAIN_EU_CID36_BINARY.mbn? file.
Now click the ??? by the FS (language file) box. Do the same as above, but this time choose ?W800_R1AA008_FS_EMEA1_CID36_BINARY.fbn?.
Remember when you wrote down your CDA number? Well now is the time to use it. Enter it into the CDA box. It should look like this: ?CDA102338/16?.
Now make sure that the ?Finalisation? box is NOT selected. Now hit the ?Flash? button.
As before, hold the ?C? button and plug in the DCU-60 cable and wait for the Flasher to update your phone. It will take about 10 minutes. I would suggest that you don?t do anything on your PC or touch your phone/cable.
Find the ?Customisation? folder in the zip you downloaded and open the ?customize.xml? with notepad (right-click and choose ?Open with??, select ?Notepad?).
Now scroll through the file, and change the following points:
Change the ?<customization-pm>? to your name or whatever you want. Change the ?<cda-number>? to the number you entered into the Flasher program (should be the same as the one you write down in step 1 unless you changed it for a laugh). Change the ?<country>? to your country, ?<model>? this can be anything, ?<operator>? keep this the same as the operator that you are on.
Now save this file.
Find the ?FAR manager? folder included with the zip file you downloaded. Double-click the ?Far.exe?. Now a dos-like window will appear.
Hit ?F11? and scroll to ?SEFP?.
Select it, and the choose ?DCU-60? from the Comm Device list.
Now follow the on-screen prompts. You have to do the old holding ?C? trick again. Again if your phone just turns on, then turn off your phone and try again.
Eventually you?ll get in. Now select ?FS? from the file list? Now a screen will pop up with a load of crap saying its writing. Its not harming your phone don?t worry.
Now go to ?tpa/preset/custom? and delete all the files there. Copy all the files from the ?Customisation? folder you downloaded to this directory.
Now hit ?Escape? and end the connection.
Reinsert your SIM card and your phone is updated!
THANKS TO Darkman, Mikhan , Hendrix for all their help !
