I am part of a team who have been developing a J2ME application for the 7650. The application was developed and tested entirely on 7650 phones with the 3.16 firmware. The application functions perfectly. It's non-network and runs entirely on the phone. For internationalisation reasons we arranged for some tests to be run by a company in Asia. The only difference between their phones and ours being they run 3.34 firmware. The application manages to load up a couple of splash screens but before it hits the main menu crashes with a null pointer exception error.
Does anyone have any idea what is going on, changes in firmware upgrade that may result in this, etc.

Failing this is anyone aware of any emulators that allow you to use different firmware versions?

thanks in advance