I am developing a j2me Application for a various list of handsets. The tools that i use
are Sun's Wireless Toolkit 2.5 , java 1.5.0_09, ProGuard, version 4.0 for obfuscation.
My jar's size is approximately at 200kb. I have not Signed digitally my application,
and the secutity setting at my WTK2.5 is Preferences->Security->Security Domain = unidentified_third_party.
(Project Settings MIDP 2.0 and CLDC 1.1)
Till now i have download and install my Midlet in handsets like Nokia6120, NokiaN73, NokiaN91,
NokiaN95,HTC P3450 without having any problems. The Midlet just installs normally and informs me
"that i am about to install a midlet from an untrusted source".
The problem occurs at SonyEricssonK800iv in which the Software manager of the handset asks me if i want to
install the Midlet which comes from an untrusted source. i Say yes and the download of my .jar from the server
begins.The screen shows "0 of 200kb downloaded" and then a message is showed: "no valid application".
The user agent of the handset (as i can see from the logs of my webserver) is
SonyEricssonK800iv/R1KG Browser/NetFront/3.3 Profile/MIDP-2.0 Configuration/CLDC-1.1
What might cause the problem?