V600 JAD requirements

[Greg Schwartz]

I am havnig some problems downloading to V600 handset over-the-air. It starts downloading and then says "Download Failed". I have reviewed the V600 documentation and the jar size exactly matches what is in the JAD. I have not had issues with the same files and all other devices so I was wondering if there were any specific JAD requirements for this device.

[Roseanne Zhang]

Motorola V400/600 are MIDP2.0 phones

[Greg Schwartz]

So what does that have to with the JAD requirements? It was my understanding that all MIDP 2.0 devices are backwards compatible with MIDP 1.0. I'm building my project as a MIDP 1.0 application in the Sun's WTK but I haven't had an issue loading this on other MIDP 2.0 devices.

[Roseanne Zhang]

Originally posted by Greg Schwartz:
So what does that have to with the JAD requirements? It was my understanding that all MIDP 2.0 devices are backwards compatible with MIDP 1.0. I'm building my project as a MIDP 1.0 application in the Sun's WTK but I haven't had an issue loading this on other MIDP 2.0 devices.

I don't know your specifics. However, as far I know not all MIDP1.0 app can run on Nokia6600. On V400/600, we had no problem to run our MIDP2.0 app. There certainly exist some subtle backwards compatibilty problems.

[Greg Schwartz]

Roseanne,

Thank you for that information. Do you know if you compiled and packaged your application as a MIDP 1.0 or MIDP 2.0 app? We're are packaging our application as a MIDP 1.0 (using Sun's WTK) and trying to distribute to MIDP 2.0 phones. We are doing this a MIDP 2.0 version won't run on a MIDP 1.0 handset and we only want one set of jar/jad files.

Thanks again,
Greg

[Roseanne Zhang]

You probably need also read this thread:
http://www.coderanch.com/t/228336/JME/Mobile/Portability-vs-Quality