Question about Samsung SGH-D840 Smartphone

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Java errors, cant read files

Hi I just bought one of these and downloaded the pc suite from samsung. I got a 2gb card and downloaded some music. I cant seem to play anything off the card unless i copy it to the phone. Is that normal? surely not.
Also I have downloaded lots of java games and apps that are apparantly for this phone but it just keeps saying the file is not reconized.
Thinking about taking it for a refund. It looks nice but I cant get it to do anything.

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  • Phillip Thorne
    Phillip Thorne Feb 12, 2009

    Top Banana! Not used it for ages but pulled it out the draw, dusted it off and followed your instructions and now it all works like any other phone. 5 stars my man!

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1. Copy the .jad and .jar files to the 'Other Files' folder on the phone.

You can copy the files from Samsung PC Studio's 'Phone Explorer', Windows Bluetooth File Transfer or just copy it straight to the memory card and move it over to 'Other Files' from the phone's menu.

2. Exit all menus and type in this code: *#9998*52824678255#. (*#9998*JAVAINSTALL#)
You should now get an 'Activated' message. Java install is enabled.

3. Go to the 'Other Files' folder and select the .jad file.
Press 'Options' (left touch key) and you should get a 'Do you want to install' question.
Press 'Yes' to install.

4. To deactivate the Java install, simply type the same code again.
You should now get a 'Deactivated' message.

Apparently the E900 is similar except the code to install is *#9998*5282# -> install MIDlet password: 235282

Posted on Feb 10, 2009

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Posted on Jan 02, 2017

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