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Old 02-01-2026, 09:58 AM   #1336
PeterT
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As long as you have calibre installed yoy have the ability to run python code.

Try (from a command prompt)
Code:
calibre-debug -e <file_that_contains_Python_code>
so for instance
Code:
calibre-debug -e test.py
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Old 02-02-2026, 10:02 AM   #1337
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Quote:
Originally Posted by PeterT View Post
As long as you have calibre installed yoy have the ability to run python code.

Try (from a command prompt)
Code:
calibre-debug -e <file_that_contains_Python_code>
so for instance
Code:
calibre-debug -e test.py
Oh, excellent. Thanks!
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Old 02-04-2026, 07:01 AM   #1338
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Returning to the conversion of Kindlebooks in Calibre. Not being a tech-wizard it sometimes is a bit of a pain.
At first I downloaded my Kindlebooks on my Kindle Paperwhite 10, firmware 5.18.1......I had to open each book before I could transport and convert them to Calibre. That worked for a time.
Afterwards I downloaded my books on an old Kindle(firmware 3.4.3.) and once I reregisterd it on Calibre with its serial number, I was able to convert the books in "view my books on the Kindle (or something like that) and then I could add them to 'my library'. That conversion stopped and I figured out that I can first add the books to 'my library' and convert them, of which I'm glad.
I hope that it won't get any more complicated.....
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Old 02-06-2026, 03:21 AM   #1339
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What bothers me a bit is that Satsuoni's method may be given too much publicity by Jadehawk's post on Techy + YouTube video. The less is propagated about such things the better I think, when it comes to Amazon knowing about it (although I'm sure they use every possible search tool to find out what goes on where about this anyway)...
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Old 02-06-2026, 04:38 AM   #1340
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Quote:
Originally Posted by Jacques Q. View Post
What bothers me a bit is that Satsuoni's method may be given too much publicity by Jadehawk's post on Techy + YouTube video. The less is propagated about such things the better I think, when it comes to Amazon knowing about it (although I'm sure they use every possible search tool to find out what goes on where about this anyway)...
Amazon has been aware of Satsuoni's method for a long time. They were aware before Jadehawk published their post.
Last edited by Sirtel; 02-06-2026 at 04:43 AM.
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Old 02-06-2026, 06:45 PM   #1341
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Smile Does this method work?
just joined today, and there is this ebook I want to download
is the method listed here still working?
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Old 02-06-2026, 06:47 PM   #1342
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Quote:
Originally Posted by GuyGaming View Post
just joined today, and there is this ebook I want to download
is the method listed here still working?
Yes, it works, but not all books can be downloaded with K4PC. Most books can, but not textbooks, for example.
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Old 02-07-2026, 12:05 AM   #1343
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Quote:
Originally Posted by Sirtel View Post
Amazon has been aware of Satsuoni's method for a long time. They were aware before Jadehawk published their post.
As I recall, it was rather shortly after Satsuoni published their method, that Amazon blocked most text books from being able to be downloaded by K4PC? Anyone believe that was a coincidence?
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Old 02-07-2026, 12:22 AM   #1344
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Quote:
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As I recall, it was rather shortly after Satsuoni published their method, that Amazon blocked most text books from being able to be downloaded by K4PC? Anyone believe that was a coincidence?
Of course not. They also blocked key extraction from memory dumps in the latest K4PC, if I recall correctly, but Sats found a way around this.
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Old 02-07-2026, 05:06 AM   #1345
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Quote:
Originally Posted by GuyGaming View Post
just joined today, and there is this ebook I want to download
is the method listed here still working?
Make sure your Kindle for PC is still 2.8.0. People are starting to get updates. See the spoiler under method 2a in the first post for info on blocking auto-updates.
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Old 02-12-2026, 06:08 PM   #1346
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Hello. I ran into a problem. I followed the method exactly, I still have K4PC 2.8.0 (automatic downloads prevented), and what I got is what I copied next. If someone has an idea of what went wrong...


[*] Checking for existing key files to preserve...
[OK] Backed up kindlekey.txt to backups folder
[OK] Backed up kindlekey.k4i to backups folder
[*] Extracting Kindle keys...
--------------------------------------------------
[*] Searching for Kindle installation...
--------------------------------------------------
[OK] Found Kindle at: C:\Users\[...]/AppData\Local\Amazon\Kindle\application
[OK] Using existing installation (no temporary copy needed)
--------------------------------------------------
[*] Scanning for book folders...
[OK] Found 1 book folder(s)

[OK] Loaded history: 2 book(s) previously processed[*] Extracting keys from 1 book(s)...

[1/1] B0G36N4CMV_EBOK - B0G36N4CMV... [ERROR] ✗ FAILED

[OK] Extractor cleaned up from Kindle folder[*] Extraction error log saved to:
C:\Users\[...]\Documents\My Kindle Content\Key_Finder\Logs\extraction_logs\extraction _20260213_000231.log[*] Raw debug log saved to:
C:\Users\[...]\Documents\My Kindle Content\Key_Finder\Logs\extraction_logs\raw_extrac tion_20260213_000224.log

--------------------------------------------------

[ERROR] Key extraction failed! No keys were extracted from any books.
[ERROR] Failed: 1 book(s)

[!] Failed books:
- B0G36N4CMV: Key extraction failed (exit code 3221225477)
Last edited by Jacques Q.; 02-12-2026 at 06:12 PM.
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Old 02-13-2026, 02:05 AM   #1347
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Detailed help with DRM removal isn't permitted at MobileRead. Please ask at the site where you got the DRM removal software.
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Old 02-13-2026, 06:49 AM   #1348
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@Jacques Q.
My guess is that the book isn't kfx format. There are some additional steps in that case. If you have an E-ink Kindle on firmware lower than 5.18.5, that's an alternative.
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Old 03-05-2026, 04:35 AM   #1349
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I'm only getting kfx-zip books into calibre now. My kindle is a 9th gen Oasis, firmware version 5.16.2.1.1. I was transferring books from Amazon to my kindle right around midnight and the last book came in as kfx-zip when I transferred it to calibre, the other books are kfx.

I'm wondering if the last book that's stuck in kfx-zip land came in after midnight and there was a switch flipped somewhere. I tried deleting a book from calibre that I downloaded from amazon last week and downloaded it to my kindle and then transferred it to calibre and it's also kfx-zip now.

Is anyone else experiencing this? Any suggestions for fixing it?
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Old 03-05-2026, 09:09 PM   #1350
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Is anyone else experiencing this? Any suggestions for fixing it?
Although DRM removal failure is the most common reason to see kfx-zip there are other possibilities such as a large book that did not download completely before being imported into calibre.

My suggestion is to post a log of an import that fails to the site hosting the DRM removal plugin. See that site for instructions on how to produce that.

Detailed assistance with DRM removal is not allowed here on MobileRead.
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