how to disable software update

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http://forum.xda-developers.com – i used to be into flashing roms etc when i had my dell streak, because it was so laggy and slow but since I've had my note, i haven't even rooted it it does everything i need and battery life and everything is brilliant I'm scared that it will auto update software to another version when ota update is released, how can i prevent this? i mean how to stop the update even being detected by my note? (HowTos)