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Old 08-23-2020, 06:35 AM   #1
mnju
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Unhappy Issues with Kindle Paperwhite after last fw updates

Hi all, hope you can help me... I have a 10th generation Paperwhite with more than 400 books on it (I always use the usb cable as my wifi is not very stable).

I always applied the latest available firmware update without issues. Since last 2 or 3 updates though (now at 5.13.1), I noticed often .mobi books I add do not appear, but if I convert them to the .azw3 format they do. Previously added mobi books work fine.

Furthermore, one of these converted azw3 books causes the Kindle to freeze if I try to read it; in this case even the shutdown button seems to work erratically (I have to chose "reboot" multiple times or "shutdown" until it finally works after a while).

I was wondering if anyone else is experiencing similar problems?

Is there an archive somewhere where I can get older firmwares for my Kindle PW?
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Old 08-23-2020, 11:52 AM   #2
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Originally Posted by mnju View Post
Is there an archive somewhere where I can get older firmwares for my Kindle PW?
Firmware with a lower version than what is installed can not be installed on kindles.

(But previous versions can be downloaded from amazon at the same page that updates are available.)
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Old 08-23-2020, 04:33 PM   #3
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What sort of mobi books?
Where did the azw come from? Usually those are only from Amazon or else home made. Non-Amazon sites usually distribute old mobi or Calibre concept of "dual mobi".
No problem on PW3 and PW4 with "old mobi" from Calibre, azw from Calibre or dual mobi from Calibre (old mobi & AZW/KF8 in one file). No problem with Gutenberg mobi either.
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Old 08-24-2020, 03:10 AM   #4
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What sort of mobi books? Where did the azw come from?
I usually convert epub books to mobi using Calibre, as I want to read them on PC too and the azw3 format is difficult to read there. Lately I've been forced to convert them to azw3 instead, as new mobi files are not showing up in my Kindle.

The azw3's have been downloaded from Amazon, but that particular book I wasn't able to open has been converted from mobi using Calibre.
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Old 08-24-2020, 03:11 AM   #5
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Firmware with a lower version than what is installed can not be installed on kindles.
Now I wish I hadn't installed them...
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Old 08-24-2020, 03:40 AM   #6
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Now I wish I hadn't installed them...
You can donwgrade to 5.10.1.3 in the first step of the jailbreak process (to do or not to do the jb is up to you then)
https://www.mobileread.com/forums/sh...&postcount=782
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Old 08-26-2020, 04:41 PM   #7
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You can donwgrade to 5.10.1.3 in the first step of the jailbreak process (to do or not to do the jb is up to you then)
https://www.mobileread.com/forums/sh...&postcount=782
That only works on certain Kindles.

Shari
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Old 08-26-2020, 10:43 PM   #8
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That only works on certain Kindles.
We are talking about PW4.
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