This posting is older than 6 months and can contain outdated information.
It's easy:
1) make sure Remote Buddy's Hotkey Remote is active (it is by default)
2) upload the hid file to your mobile using the Bluetooth file
transfer utility of OS X
3) locate the keyboard / remote control entry in your mobile's menu
(=> please consult the manual for that) and make use of it
4) pair the mobile using OS X' Bluetooth preferences - it should be
recognized as keyboard now
Please note that I don't have any Sony Ericcson mobile myself, so all
I can do is pass on the information I got from users.
Best regards,
Felix Schwarz