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		#1 | 
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			 Junior Member 
			
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				Karma: 10 
				Join Date: May 2010 
				
				
				
				Device: SONY PRS-900 
				
				
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			I want to change something in the opt.img. 
		
	
		
		
		
		
		
		
		
		
		
		
	
	I unpack the img file by sing the cramfs-tools in the forum.But I can't pack it again like PRS-600.It failed. I hope some of you who knows Linux can help me pack them. This is my e-mail,please HELP me! alansuyalun@gmail.com I'll send the files to you. ![]()  
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		#2 | 
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			 Junior Member 
			
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				Device: SONY PRS-900 
				
				
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			Wow,nobody? 
		
	
		
		
		
		
		
		
		
		
		
		
	
	OMG  | 
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		#3 | 
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			 Connoisseur 
			
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				Join Date: Apr 2010 
				
				
				
				Device: PRS-T1 
				
				
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			What do you mean by "it failed"? I have a 600, but might be able to help if I know what the problem is.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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		#4 | 
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			 Guru 
			
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				Join Date: Dec 2009 
				
				
				
				Device: PRS-505, PRS-600, iPad 16GB Wifi, Kindle Voyage, Nexus 6, Razr HD 
				
				
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			Try contacting Kartu. He's the initial maker of PRS+ and knows a lot about this stuff. He should at least be able to point you into the right direction.  
		
	
		
		
		
		
		
		
		
		
		
		
	
	 
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		#5 | |
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			 Junior Member 
			
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		 Quote: 
	
 I succeed to unpack and pack them. I also found some people have the same question with mine.  | 
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		#6 | 
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			 US Navy, Retired 
			
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			This would have been better asked in the Sony Reader Dev Corner forum.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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