I try to download a games or an application in my samsung champ gt-c3303K but it says that the downloaded jar is invalid and the jar is too big its like that.can you help me to my problem on my phone? i even try the *#52828378# but nothings change. i hope you can help me through this. thanks

You need to download and install JAVA to open these files.

1. Follow this link: http://www.java.com/en/download/index.jsp

2. Click on "Free Java Download"

3. Click on "Agree and Start Free Download"

4. Click Save File

5. Open file once it is downloaded.

6. Click "Install" when the JAVA installer opens.

7. Uncheck "Include FREE McAfee Security Scan Plus" unless you want this program

8. Click "Next" and close all browsers.

9. Restart computer if asked to from the installer.

10. Open up the jar files you were unable to open prior to installing JAVA.

That should do it; good luck and thanks for using FixYa.