TUTORIALS ON HOW TO RENAME ZIP TO JAR USING BLUEFTP

Step 1: download the zip file for Nokia java phone.

Step 2: open your blueFTP and go to the downloaded file.

Step 3: Open the zip file and press options and select 'extract file'

Step 4: go back to another folder, press options and select 'extract item here'

 

When it is done.
Step 5: press options and select 'rename item' and change the last name .jar to _jar

 

Close the bluFTP
Step 6: go to it inside the folder and rename the _jar to .jar

 

Note:
If the zip file is not supported by java phone, when you open it with your blueFTP, you will not see the .jar file inside it. Instead, you will see the properties of the .zip file