It looks like the
M1 version (v4.1.0.378) of the 8707v software only has input options for
Simplified Pinyin,
Simplified Wubihua, and
Simplified Cangjie Input Methods, and has support for
Simplified Chinese and Japanese Characters and Font, but there's no mention of Korean support.
The
Vodaphone (UK) version (v4.1.0.355) does have
BlackBerry Korean Characters and Font support. (Strangely enough, the Vodafone Vodafone Australia and Fiji is set up just like the M1 version!).
You'll want to uninstall all version of BlackBerry Desktop Manager (except 4.2.1 aka 4.2 SP1) and Device software you have installed, then download and install
Desktop Manager 4.2 SP1 and the
Vodaphone (UK) version of the 8707v software.
I've checked it out with the 8707v BlackBerry Simulator, and it's willing to accept either version of firmware, but I'm not positive it will work with an actual M1 8707v. I'm not too well versed on the intricacies of modifying the ALX files to allow a specific vendor's files to work on another vendor's device, but I can tell you that for the Vodafone files have:
_vendorID="118|120|124|130|132|133|137|138|139|140 |143|148|152|153|161|166|167|168|176|188|192|193|1 94|195|196|197|198|199|200"
I can't tell what the _vendorID value is for the M1 software.
If you can't get the Desktop Manager's Application Loader to install the Vodafone UK software, post it here. Someone better versed in modifying the ALX files will let you know what needs to be done to get the UK software onto your phone!