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			Thank you. 
It is not clear in the first page of this thread. It seems that the jailbreak downgrade the KT at fw 5.1.xxx. Do you mean that I can use the flash key I prepared ( with the image ISO for KT and the  file to boot it) to jailbreak the device and when the procedure show me "Yes, I flash the main partition", I uncheck it? so I don't need to upgrade to fw 5.3.2.1?
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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