Installing free games and application on your Samsung Champ C3300K, after downloading 100% you gets error "Download Unavailable. Downloaded JAR are Invalid" while pre-installed Samsung Champ Games are working well. This is the most common problem encountered when you are try to download and install games on your Samsung Champ.
Solution on Downloaded JAR are Invalid
Steps you can use to troubleshoot the download JAR file issue on your Samsung Champ phone.
- To solve this problem just dial *#52828378#
- Go to OTA test
- Then change Maximum Jar size field value
- Set it to higher than 500, you input 5000 and save it.
- After that go to memory test and change java heap to 1700
- Then change also MIDP heap to 2000 and save.
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