Cannot change to English UK from English US I recently updated my HTC Desire S to ICS 4.04 and sense 4.6 via the upgrade available at HTCDEV.COM

Since then my default language is English US and cannot change it to English UK via the setting>Language and Keyboard

It also changed my contact number from 12345677 to 123-45-67 which i am quessing it has to do with the US locale?
Thanks
I have had the same problem. Try downloading Custom Locale from the Play Store and you can select your language. Do a reboot once you have changed the settings in the app and it will have reflected it in the device settings.