To do a K750i to W800i conversion, you can use this place:
http://www.totalserver.net
It uses the
Total MultiServer program with their server- it costs
only £8 for a credit which can be bought through
PayPal (it's cheaper than other places i've looked at, like
http://www.totalmultiserver.com where it costs £10).
The best thing about this specific website/server is that you can use your existing DCU-60 USB cable that came with your K750i in order to do the firmware update/upgrade (saving you money- which you cannot do with most other services), but you cannot use the DCU-60 cable to unlock your phone should it be barred.
Using your USB cable to do this upgrade you will unbrand your phone (get rid of say any O2 icons and download shortcuts in your folders, and all of the O2 startup and shutdown screens), unlock your phone so it can be used with any network/sim card, and most importantly convert your phone to a W800i with all the W800i Walkman start-up screens, Walkman media player/icons and your Shortcut button above the joystick will become the shortcut to the Walkman Media Player. Your mobile will practically be a W800i in a K750i looking housing- which can be easily changed (if you like the orange!).
Below is a list of steps in order to upgrade using TotalMultiServer.net-
NOTE: Before you begin you must back-up your phonebook contacts and mobile data as these will not be saved. It is also a good idea to back-up your memory card:
1) Visit
http://www.totalserver.net 2) Click the 'Buy Now' Icon at the top of the page
3) Type in Your Name, E-Mail address (needed to receive username and password) and then click 'Proceed'
4) Follow the steps for payment via PayPal or credit/debit card to complete payment
5) The transaction should be made instantly and you will receive your username and password in your E-Mail inbox
6) Click the 'Download' button at the top of the TotalMultiServer.net and download the TMS Client Software.
7) Once downloaded unzip the file and run the 'TOTAL Multi-Server.exe' program
8) At the bottom left hand corner of the program, type in your username and password then click the 'Download Area' button on the right.
9A) On the right hand side of the program, a list of folders will appear. Navigate to/click the folders to download the latest W800i firmware (this may have changed and may be different from the below):
SonyEricsson W Series
> W800i - W800c
> 2005-12-19 - W800i_R1AA008_RED_CID36
> 1.- EU-EMEA-US
> 1.FIRMWARE
Download the
W800i-R1AA008_ZONE_1_EU-EMEA-US.75S file.
9B) Now to download the latest language file (this may have changed and may be different from the below):
Click the folder beneath named
>2.- DEFAULT LANGUAGE.
Select the language file that you require for your country, for UK users this is usually
'W800i_R1AA008_EU2_EN_DE_FR_ST_TR_ZU.75D'.
(To check this check your current language version by pressing
> * < < * < * and going to 'Service info' then 'Software info'.)
10) Once downloaded, click the 'Exit' button just above the advertisement banner.
11) Now on the left side of the program select your brand 'Sony Ericsson' then model 'K750i/D750i/W800i'.
12) Below that on the 'Flash Menu', click the folder icon next to 'Select FIRMWARE File' and navigate to the firmware folder and to the firmware file.
Do the same for the 'Select DEFAULT LANGUAGE File'.
13) THIS IS VERY IMPORTANT. It automatically selects to disable the Camera Shooter Sound. Uncheck this should you want to keep the camera sound after upgrading.
14) Ignore the 'EROM Repair' settings and move down to the Computer COM port and Cable Settings. Under the 'Original SonyEricsson Cable' box check/select 'DCU-60 FastPort USB Cable'.
15) Once your ready click the 'Program Files to Phone Memory' button. This is where the actual upgrade begins.
16) On the right hand side panel of the program follow the steps carefully. Remember that when your phone is connected DO NOT TOUCH IT, it may take a while and it may seem that nothing is happening- but be patient.
17) Once completed your credit will be deducted. You will notice instantly if your phone has successfully upgraded to W800i as the menu screens will have changed, and you will have the Walkman player...
Oh yeh- and good luck!