Just asking, is there by any means or so, any possible way to lock apps and hide them to prevent them from being deleted?

P.S: Its like the inbuilt Google Maps, a hidden java somewhere in the Main Firmware.

MobyExplorer or Minicommander

I think he means, he wants to protect applications from being deleted but you can still see and run them (e.g. read only attribute) AFAIK there isn't a way to do that

Depending on your phone model, there are patches that move the java installation directory in a more accesible location within reach of java apps capable of modifying file permissions like mentioned by boysie99.

I got it all, after analysing what happenned to my phone. Suddenly all my applications and games from both mem card and phone card, so I cleared both ams-es in both memories and restart from fresh.

All you have to do is just to find the default.xml and then take out the java part. Or you can just use this code.

<java> <!-- Add predefined Java applications in this tag -->
<!-- Common -->
<midlet deletable="false" upgradeable="true" install="true" folder="applications"> <jad-file>java/.jad</jad-file> <jar-file>java/.jar</jar-file> </midlet>
<midlet deletable="false" upgradeable="true" install="true" folder="games"> <jad-file>java/.jad</jad-file> <jar-file>java/.jar</jar-file> </midlet>
</java>
</customization>

P.S: remember, for midlet deletable, it must be FALSE.
Of course, it will be in your phone memory, and you cannot do anything about it. And from this method, I got back my PlayNow Plus. !