Firmware Update Kindle 5.19.2 software is available - Page 3

tomsem · 02-26-2026, 04:31 PM

I side-loaded an AZW3 comic (downloaded 'for transfer via USB' back in the day) and it works fine (except no cover thumbnail appears). Note this has ctype=EBOK.

KCC now I think uses ctype=PDOC but in past used ctype=EBOK.

I do not know if that matters, but it would be interesting to know if it does.

In any case AZW3 is easily inspected so some other difference in HTML/CSS might shed some light.

axu2 · 02-26-2026, 04:57 PM

Quote:

Originally Posted by tomsem

I side-loaded an AZW3 comic (downloaded 'for transfer via USB' back in the day) and it works fine (except no cover thumbnail appears). Note this has ctype=EBOK.

KCC now I think uses ctype=PDOC but in past used ctype=EBOK.

I do not know if that matters, but it would be interesting to know if it does.

In any case AZW3 is easily inspected so some other difference in HTML/CSS might shed some light.

Based on your profile, you are using a Scribe? The problem was only reported on PW11/12 and Basic 11 so far. and yes your are correct about pdoc ebok, I'll ask around.

EDIT: a scribe 2022 user reported the problem just now

Have you tried loading any files generated by kcc? I made some sample files a while ago if you want to try loading a mobi.

https://www.mediafire.com/folder/ixh...c5/kcc_samples

tomsem · 02-27-2026, 03:32 AM

Quote:

Originally Posted by axu2

Based on your profile, you are using a Scribe? The problem was only reported on PW11/12 and Basic 11 so far. and yes your are correct about pdoc ebok, I'll ask around.

EDIT: a scribe 2022 user reported the problem just now

Have you tried loading any files generated by kcc? I made some sample files a while ago if you want to try loading a mobi.

https://www.mediafire.com/folder/ixh...c5/kcc_samples

Quote:

Originally Posted by axu2

Based on your profile, you are using a Scribe? The problem was only reported on PW11/12 and Basic 11 so far. and yes your are correct about pdoc ebok, I'll ask around.

I have Scribe 2022 and Scribe Colorsoft. I have seen the issue on the latter with a particular comic in my Amazon library (which downloaded AZW3 rather than KFX), but I cannot remember which one it was, so cannot reproduce. I don't use KCC.

But then I did try KCC, and while I'm not seeing extra whitespace, I'm seeing a lot of pages that do not render and remain blank.

AZW3 files that were downloaded from Amazon do not seem to work correctly either: I downloaded one to my Kindle Touch and side loaded it to Scribe. (This would identify as EBOK, not PDOC as with the KCC book). Some pages display a black square instead of rendering the page content.

KCC has orientation setting available, but not the AZW3 I moved over. But it's moot since neither works.

Maybe it 'should' work but do we really think this will ever be a priority for Amazon to fix?

Which is another reason I don't use KCC and use Kindle Create instead to get KFX for side loading, or if I want it in my Library, PDF & Send To Kindle (hey, you can draw on them! or colorize BW manga/comics on Scribe Colorsoft).

axu2 · 02-27-2026, 06:11 PM

Quote:

Originally Posted by tomsem

I have Scribe 2022 and Scribe Colorsoft. I have seen the issue on the latter with a particular comic in my Amazon library (which downloaded AZW3 rather than KFX), but I cannot remember which one it was, so cannot reproduce. I don't use KCC.

But then I did try KCC, and while I'm not seeing extra whitespace, I'm seeing a lot of pages that do not render and remain blank.

This is unfortunately an extremely common problem on 2025 Scribes: https://github.com/ciromattia/kcc/issues/1216

It also happens on 2022 Scribes with certain option choices like png/crop: https://github.com/ciromattia/kcc/issues/1224

Quote:

Originally Posted by tomsem

Which is another reason I don't use KCC and use Kindle Create instead to get KFX for side loading, or if I want it in my Library, PDF & Send To Kindle (hey, you can draw on them! or colorize BW manga/comics on Scribe Colorsoft).

KCC can output PDF and autosplit on 200 MB. And you can choose png option for writable PDF output via Send to Kindle, which will use 16 color lossless png instead of 256 color jpg that kindle create uses. Which means a much sharper image on a 16 color eink display at much smaller filesize since 16 colors fits in 4 bits (2^4=16) while 256 colors fits in 8 bits (2^8=256).

Also, Kindle Create often renders images at 1500x2250 last time I checked, which isn't quite the 1860x2480 of the Scribe 2022.

jhowell · 03-01-2026, 12:55 PM

I took a look at the 5.19.2 firmware. Some notable changes that may reflect upcoming new features:

Large expansion of apps that run under Mesquite: addviewer, audibleupsell, csapp, fts, grokterms, help, kft, ku, mfa, mysn, odac, payment, prime, privacy, subscription, webview.

AI generation of new Scribe notebook templates from images.

tomsem · 03-01-2026, 06:21 PM

I keep hoping they will add Comixology support (borrow, return, filter, thumbnail 'badge', etc.). There are plenty of B&W manga/comics that can be read on any Kindle not to mention those with color and screen size to handle them comfortably.

rantanplan · 03-02-2026, 03:39 AM

Quote:

Originally Posted by jhowell

grokterms

I'm wondering why Amazon sees the need to bring the Nazi AI to their devices, is Alexa really that bad?

jhowell · 03-02-2026, 09:04 AM

Quote:

Originally Posted by rantanplan

I'm wondering why Amazon sees the need to bring the Nazi AI to their devices, is Alexa really that bad?

Amazon uses the term “grok” internally to mean Goodreads on Kindle.

rantanplan · 03-02-2026, 11:25 AM

Quote:

Originally Posted by jhowell

Amazon uses the term “grok” internally to mean Goodreads on Kindle.

Good to know, thank you.

j.p.s · 03-02-2026, 12:56 PM

Quote:

Originally Posted by rantanplan

I'm wondering why Amazon sees the need to bring the Nazi AI to their devices, is Alexa really that bad?

Quote:

Originally Posted by jhowell

Amazon uses the term “grok” internally to mean Goodreads on Kindle.

And probably well before an AI got that name.

The word itself was coined by Robert Heinlein in 1961 in Stranger in a Strange Land. I have no idea whether amazon is making a nod to that or it is a coincidence.

xiaoguixp · Today, 08:58 AM

Tested out the 5.19.2 firmware on my KPW 6 and Kindle Colorsoft. I found that the font embedding doesn't work well. For Chinese books, I used to embed a font for rare characters, and then used CSS "font-family" property to specify those characters to use that font. In previous firmware, this worked well, but in this new firmware, it doesn't work, resulting in the rare character being displayed as a square (☐). Since this font isn't used as the primary font for the main text, it doesn't show up in the font selection dialog as "Publisher Font". It seems the new firmware has ignored my font specification, and has fallen back to the default system font.

03-01-2026, 06:21 PM	#36
tomsem Grand Sorcerer Posts: 7,144 Karma: 28000001 Join Date: Apr 2009 Location: USA Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3	I keep hoping they will add Comixology support (borrow, return, filter, thumbnail 'badge', etc.). There are plenty of B&W manga/comics that can be read on any Kindle not to mention those with color and screen size to handle them comfortably. Last edited by tomsem; 03-01-2026 at 06:34 PM.

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02-26-2026, 04:31 PM	#31
tomsem Grand Sorcerer Posts: 7,144 Karma: 28000001 Join Date: Apr 2009 Location: USA Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3	I side-loaded an AZW3 comic (downloaded 'for transfer via USB' back in the day) and it works fine (except no cover thumbnail appears). Note this has ctype=EBOK. KCC now I think uses ctype=PDOC but in past used ctype=EBOK. I do not know if that matters, but it would be interesting to know if it does. In any case AZW3 is easily inspected so some other difference in HTML/CSS might shed some light.

03-01-2026, 12:55 PM	#35
jhowell Grand Sorcerer Posts: 7,263 Karma: 95018123 Join Date: Nov 2011 Location: Charlottesville, VA Device: Kindles	I took a look at the 5.19.2 firmware. Some notable changes that may reflect upcoming new features: Large expansion of apps that run under Mesquite: addviewer, audibleupsell, csapp, fts, grokterms, help, kft, ku, mfa, mysn, odac, payment, prime, privacy, subscription, webview. AI generation of new Scribe notebook templates from images.

Today, 08:58 AM	#41
xiaoguixp Member Posts: 14 Karma: 10 Join Date: Aug 2012 Device: Kindle Paperwhite 3	Tested out the 5.19.2 firmware on my KPW 6 and Kindle Colorsoft. I found that the font embedding doesn't work well. For Chinese books, I used to embed a font for rare characters, and then used CSS "font-family" property to specify those characters to use that font. In previous firmware, this worked well, but in this new firmware, it doesn't work, resulting in the rare character being displayed as a square (☐). Since this font isn't used as the primary font for the main text, it doesn't show up in the font selection dialog as "Publisher Font". It seems the new firmware has ignored my font specification, and has fallen back to the default system font.