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					Originally Posted by  ilovejedd
					 
				 
				PW4 normal firmware: Not jailbreakable as-is. 
 
PW4 fw <= 5.10.1.3: Can install factory firmware and use ;installHtml (or ;merchant) jailbreak method. 
 
PW4 fw > 5.10.1.3: No known vulnerabilities at this time in both normal and factory firmware (Amazon already fixed the one we use for ;installHtml and ;merchant). No idea if/when a new jailbreak method will be discovered. 
			
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 In addition, there have not yet been any reports of successful jailbreaking PW4 using the serial port.