Originally Posted by JJEgan
First step would be to read the FAQs as you are trying to start at the middle instead of the beginning .
What exactly are you trying to achieve .
Signature error is caused by trying to install an unsigner update.zip on recovery 3e. if you want help you should:
FIRST: read FAQS and Walktrough. When you read and understand them, you may proceed to doing what you want.
SECOND: Take time to WRITE every informations needed, like your GOALS and what has been done as of yet.
Asking for "update.zip" is like going to the garage and asking for an oil filter without telling the make, brand and year of your car. You might end up with an oil filter for a compressor instead of what you need.
THIRD: Don't do anything until you trully understand what you are doing. Or you might end up bricking your device (and blaming samsung for it?!)