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Originally Posted by moonlightinwhite
1.) If I understand this correctly, I can return the Kindle back to its vanilla state by using the uninstalls of each of these (jailbreak and two hacks), right? Do they need to be uninstalled in the same order they were installed (jailbreak, screensavers, fonts) or in reverse order? I ask not because there are any problems, but I'm curious as to whether it's possible for Amazon to release an official firmware update that does everything the hacks do and if they did that, could I return the Kindle to stock.
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Yes, you can. You would uninstall the hacks in the reverse order that they were installed. The jailbreak has to be uninstalled last.
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Originally Posted by moonlightinwhite
2.) If an update for either the jailbreak or hacks is released, do the ones I've already installed need to be uninstalled in order to update?
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No. The jailbreak never needs to be updated even if a new one is released. Once your kindle is jailbroken, it's jailbroken for good unless you uninstall.
The other hack updates can be installed right on top of the existing ones.
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Originally Posted by moonlightinwhite
3.) What are the restrictions on the screensaver files? I see that there are 600x800 and 824x1200 files - is the "correct" resolution for new screensavers 600x800? And then, do they need to be .gif or can they be .png? Any limitations on the number of colors or can I just take any image and make it grayscale?
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600x800 is the correct size for a standard Kindle (1/2/3). 824x1200 is the correct size for a Kindle DX. They can be .jpg, .gif or .png. The Kindle only displays 16 shades of gray, so images will look better if you reduce them to that before placing them on the Kindle. That said, the Kindle will generally display any image if it's not too large (filesize), it just won't look as good.
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Originally Posted by moonlightinwhite
4.) Can I get official updates from Amazon with the jailbreak and/or hacks in place? Will the jailbreak and/or hacks need to be reinstalled if Amazon releases a firmware update and I install it?
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Yes, you can still get updates from Amazon. None of the current versions of the hacks interfere with Amazon updates. I'm not aware of any previous updates requiring re-installation. NiLuJe might have more insight into that one though.