Originally Posted by garyr4
only problem with update is the developers option in settings isn't there anymore, other than that no problems.
That's a JB 4.2 feature, not HTC specific.
It does exist, but you need to use an Easter Egg to enable it (!!??). Go to Settings > About > Software Information > More, and tap repeatedly on "Build number". After a few taps it will start to give you a countdown, and if you keep on tapping you will be told "congratulations, you are now a developer" or words to that effect.
Once you've done that, the Developer options menu will be back.
No, I've really no idea who thought this was a good idea...