I'm developing a midlet that retrieves data from internet. I've tested my midlet in several phone. It works well in nokia 6600, but when i test on nokia 5300 XpressMusic, it can't connect to the internet. This is very strange because i have also opera mini in my nokia5300 and there's no problem with its internet connection. It means that only my midlet that isn't allowed to connect to the internet. The detail info of opera mini app is just the same with my midlet, both of them has no certificate. So what's wrong with the midlet, or the phone?