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AnemicOak · 12-11-2016, 03:35 PM

From what you posted above your firmware version is 4.0, but here's Amazon's help on determining software version...
https://www.amazon.com/gp/help/custo...deId=201177290

The 1308590058 is a build number I believe.

The firmware updates you want are here...
https://www.amazon.com/gp/help/custo...deId=200774090

That Kindle runs 4.x software so any type of 5.x software isn't going to work. The latest version for your device is 4.1.3

I don't recall if that device was supposed to have AZW3 support at launch (it came out around the same time as the AZW3/KF8 format did), but updating to the latest firmware should take care of things.

12-11-2016, 03:35 PM	#2
AnemicOak Bookaholic Posts: 14,391 Karma: 54969924 Join Date: Oct 2007 Location: Minnesota Device: iPad Mini 4, AuraHD, iPhone XR +	From what you posted above your firmware version is 4.0, but here's Amazon's help on determining software version... https://www.amazon.com/gp/help/custo...deId=201177290 The 1308590058 is a build number I believe. The firmware updates you want are here... https://www.amazon.com/gp/help/custo...deId=200774090 That Kindle runs 4.x software so any type of 5.x software isn't going to work. The latest version for your device is 4.1.3 I don't recall if that device was supposed to have AZW3 support at launch (it came out around the same time as the AZW3/KF8 format did), but updating to the latest firmware should take care of things. Last edited by AnemicOak; 12-11-2016 at 03:38 PM.