Java not supported

you are not downloading the correct java application for your phone
visit http://gallery.mobile9.com/c/sony-ericsson-v630-java-software_361/1/
to download more applications manly for your phone.

Anyway to view PDF files you have to download PDF Reader (Download links given below) or send it to your Sony Ericson and install the application.As far as I know this PDF reader supports the following Models
Sony Ericsson k750i Sony Ericsson W810i Sony Ericsson k800 Sony Ericsson p990

Sometimes you might get a "Invalid Application" or "Operation Failed" error, in that case try to re install PDF reader application! As Sony Ericsson mobile phones support .Jar file extension,I have uploaded the PDF Jar file to different file hosting!

check this lick for SONY mobile softwares.--http://ptf.com/sony/sony+ericsson+c902+mobil+software+pdf+reader+java+free+downlod/

thanks for rating

Good luck

when download game and other application for sony ericsson w300i in this display operation failed please help me

Please check what is version of java application you are trying to download on sation as satio dont support few versions

First, you need to download the PC Suite for your phone. Next, you need to update your phone's software. (Note: you will need a USB- data cable specifically made for your phone if you don't already have one.)

Requirements

• Internet connection (preferably broadband)
• USB cable
• For updating PC cards you need a PC card slot.
• Intel® Pentium® 4, 2.0 GHz or higher, AMD Athlon
• 500 MB free hard disk space.
• 512 MB RAM
• 1 available USB 2.0 port
• Windows XP™ (Home or Professional) with SP2 or later.
• Microsoft® Windows Vista™ (32/64 bit).
• Microsoft® Windows 7 (32/64 bit).

Then,click on this website:
Sony Ericsson W550i Support
And, download both of these programs on your PC.
Install the PC Suite first. Then run the phone's update program.

Java is installed from the factory and cannot be repaired when it stops working properly - unless you install an update program to the phone.

Take your time, be patient and follow all of the instructions exactly.

The update program may wipe all of your applications off your phone, so use the PC Suite to make a back-up of your files before you begin to update your phone.

You'll have your phone operating as good as new in no time at all.

Only java application will work in sony erricson
.. make sure you download the application/games are java application....if its perfect delete that application and reinstall it

maybe its because your Java Applications is not Support with SE G502...

try download another Java Applications which support with SE G502

i was unable to install themes in my sony w395 though i download the themes from sony ericsson site itself. in description they have given it supports themes but practically its not possible for me to install. tell me the way to solve it.

i had a lot of games on my w700i and then suddenly they all dissapeaed, . now whenever i download and try to install a new game it says operation failed. i have a memory stick and everything else works fine, so whats the proble.
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This error occurs when your phone is checking the signature of a digitally signed java application and there is no match or is unable to do so. The most common cause is that the signature is expired. Try setting the date backwards on your phone - let's say one or two month :-) and have a look! I bet it works now....