[Kindle]No Cover when transferring manually via USB or Web Browser

flensrowi · 09-10-2019, 04:06 AM

Hi,

I'm converting ePub Books to azw3 with Calibre for my Kindle O2.

Everything is fine if the Kindle is connected via USB and Calibre transfers the book to the main memory. If the book is copied manually to the documents directory there's no cover.

What I really want is to be able to convert and access the converted book remotely. As it's not possible to send the awz3 format to the kindle via email I'm using calibre's webserver and download the book with the browser on my kindle. This works but again without cover.

So Calibre does some magic to the kindle when it's connected

Is there a way to get the book an the kindle without the need to connect it via usb and transfer it with calibre?

NiLuJe · 09-10-2019, 09:07 AM

Not that I know of (via Calibre, at least).

Over the years, there's been a few custom wireless transfer scripts written for personal use by various people, but I've never used any of 'em, and not all of 'em may be handling PDOC/ASIN/thumbnail shenanigans properly. And all of 'em require a jailbroken device.

Take all that with a grain of salt, since I haven't been using a Kindle as a daily-driver for more than a few years now (and wireless transfer was never really on my radar).

(But, yeah, as you surmised, there is some trickery involved in the Calibre Kindle driver when using "Send To Device" over USB, in order to make it "just work"

).

kovidgoyal · 09-10-2019, 10:59 AM

There is an entry in the FAQ about this https://manual.calibre-ebook.com/faq...droid-ipad-etc

flensrowi · 09-10-2019, 04:18 PM

Oh, sorry, I'm talking about azw3 format

jhowell · 09-10-2019, 04:36 PM

Kindle devices do not extract cover thumbnail images from azw3 format.

If you use calibre to sideload an azw3 book via USB it will create a thumbnail image with the proper name and format and put it into the correct location for it to show up on the Kindle. I don't believe that there is any way to do that using the web browser.

09-10-2019, 04:06 AM	#1
flensrowi Junior Member Posts: 5 Karma: 10 Join Date: Mar 2012 Device: Kindle Oasis2, Basic Kindle 10th Gen, Pocketbook Touch Lux	[Kindle]No Cover when transferring manually via USB or Web Browser Hi, I'm converting ePub Books to azw3 with Calibre for my Kindle O2. Everything is fine if the Kindle is connected via USB and Calibre transfers the book to the main memory. If the book is copied manually to the documents directory there's no cover. What I really want is to be able to convert and access the converted book remotely. As it's not possible to send the awz3 format to the kindle via email I'm using calibre's webserver and download the book with the browser on my kindle. This works but again without cover. So Calibre does some magic to the kindle when it's connected Is there a way to get the book an the kindle without the need to connect it via usb and transfer it with calibre?

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09-10-2019, 09:07 AM	#2
NiLuJe BLAM! Posts: 13,477 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	Not that I know of (via Calibre, at least). Over the years, there's been a few custom wireless transfer scripts written for personal use by various people, but I've never used any of 'em, and not all of 'em may be handling PDOC/ASIN/thumbnail shenanigans properly. And all of 'em require a jailbroken device. Take all that with a grain of salt, since I haven't been using a Kindle as a daily-driver for more than a few years now (and wireless transfer was never really on my radar). (But, yeah, as you surmised, there is some trickery involved in the Calibre Kindle driver when using "Send To Device" over USB, in order to make it "just work" ).

09-10-2019, 10:59 AM	#3
kovidgoyal creator of calibre Posts: 43,858 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There is an entry in the FAQ about this https://manual.calibre-ebook.com/faq...droid-ipad-etc

09-10-2019, 04:18 PM	#4
flensrowi Junior Member Posts: 5 Karma: 10 Join Date: Mar 2012 Device: Kindle Oasis2, Basic Kindle 10th Gen, Pocketbook Touch Lux	Oh, sorry, I'm talking about azw3 format

09-10-2019, 04:36 PM	#5
jhowell Grand Sorcerer Posts: 6,497 Karma: 84420419 Join Date: Nov 2011 Location: Tampa Bay, Florida Device: Kindles	Kindle devices do not extract cover thumbnail images from azw3 format. If you use calibre to sideload an azw3 book via USB it will create a thumbnail image with the proper name and format and put it into the correct location for it to show up on the Kindle. I don't believe that there is any way to do that using the web browser.