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Help How to NOT install the 4.3 update on Galaxy S4

Same thing happened to me. I had grand plans to do a FDR before updating to KK. The phone surprised me with the update notification, so I kept denying it all day long until I had time to prep for it. Unbeknownst to me, the update would go ahead with or without my permission. I recall being awakened about 2AM when the phone rebooted after self-approving the update. Fortunately, I've had few if any issues after the impromptu update.
 
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