I have a LG E400 phone with Android 2.3. I installed JBED. Now when I am opening a Java file after extraction it says that there is no SD card or SD card is busy. Why is this happening? Please, help me!
This application wasn't updated in a while, but the thread hosted on XDA is available and active and you can post this bug to that forum. Since it's more likely a bug you will need to report it in that location to get a proper answer on why this is happening.
