this is a software fault so will need new software flashing to it.
have a chice, keep as k750i or you can flash to w800 as they are the
same phone except for software, the button above the joystick would
become the walkman button.
about cid 36 as it can also be done to a cid 49 which i will post links
to the software that will need to be flashed to the phone, but in any
case get a reading off xs++ before you start then make a gdfs backup.
you will need to register to download the files but its free, also you will need winrar
to unpack the files.
then choose your language from this lot:
of course you can keep it as a k750i if you want but being honest, you loose nothing by flashing to a w800 and gain walkman.
incidently if you want to unlock it aswell see here
same procedure except you will not have to bypass security and will be using the files you downloded not the ones shown, if you have any problems there are plenty of people (including me) on se-nse that will help