Can anyone tell me how can i reset / format or something similar to original style?

Then what step should i do first? jailbreak and install? install something?
or what? how to do it?

or where can i get information regarding those if its not in this thread?

the step i copied to here
How to backup Contacts :

Navigate to /private/var/mobile/Library/AddressBook
There will be two files save them on your computer.

how to navigate? how to find the file? how to save the file?

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Added on August 25, 2011, 8:27 amway too hard to learn how to jailbreak....
too much to read and too much to understand..

what shsh blops and save
what firmware thing..
what backup thing...
what redsnow

headache

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Added on August 25, 2011, 8:30 amwhat download tiny umbrealla i don't know where to download
then what make sure idevice is detected. I don't know what is idevice...
explanation is not clear

This post has been edited by Kuja: Aug 25 2011, 08:30 AM

googled for a week and found nothing.... my question not be answered anywhere..