Cannot convert Kindle 1.25 book with KFX-ZIP encryption to PDF

[laiceyshae]

Using Mac 10.13.1 Kindle 1.25.2 latest calibre and drm packages. It worked previously until I updated Calibre and now it's not working at all.

I don't know anything about computers. Please help :(

calibre Debug log
calibre 3.30  embedded-python: True is64bit: True
Darwin-17.2.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '17.2.0', 'Darwin Kernel Version 17.2.0: Fri Sep 29 18:27:05 PDT 2017; root:xnu-4570.20.62~3/RELEASE_X86_64')
Python 2.7.12
OSX: ('10.13.1', ('', '', ''), 'x86_64')
Interface language: None
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 12, 1) && DeDRM (6, 6, 1) && Package KFX (from KFX Input) (1, 12, 1) && KFX metadata reader (from KFX Input) (1, 12, 1) && KFX Input (1, 12, 1)
calibre 3.30  embedded-python: True is64bit: True
Darwin-17.2.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '17.2.0', 'Darwin Kernel Version 17.2.0: Fri Sep 29 18:27:05 PDT 2017; root:xnu-4570.20.62~3/RELEASE_X86_64')
Python 2.7.12
OSX: ('10.13.1', ('', '', ''), 'x86_64')
Interface language: None
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 12, 1) && DeDRM (6, 6, 1) && Package KFX (from KFX Input) (1, 12, 1) && KFX metadata reader (from KFX Input) (1, 12, 1) && KFX Input (1, 12, 1)
devicePixelRatio: 2.0
logicalDpi: 72.0 x 72.0
physicalDpi: 113.500001705 x 113.500001705
Using calibre Qt style: True
[0.00] Starting up...
[0.02] Showing splash screen...
[0.20] splash screen shown
[0.20] Initializing db...
[0.22] db initialized
[0.22] Constructing main UI...
[1.88] main UI initialized...
[1.88] Hiding splash screen
[1.92] splash screen hidden
[1.93] Started up in 1.93 seconds with 9 books
objc[4916]: Class FIFinderSyncExtensionHost is implemented in both /System/Library/PrivateFrameworks/FinderKit.framework/Versions/A/FinderKit (0x7fffae9aca70) and /System/Library/PrivateFrameworks/FileProvider.framework/OverrideBundles/FinderSyncCollaborationFileProviderOverride.bundle/Contents/MacOS/FinderSyncCollaborationFileProviderOverride (0x11a702cd8). One of the two will be used. Which one is undefined.
Gather KFX-ZIP (from KFX Input) 1.12.1: Importing /Users/baileyfrancom/Library/Containers/com.amazon.Kindle/Data/Library/Application Support/Kindle/My Kindle Content/B00HYMCIZC_EBOK/B00HYMCIZC_EBOK.azw
Gather KFX-ZIP (from KFX Input): Gathered 4 file(s) as /var/folders/b4/q9xk45xx11vg5ph4w7wxdrvw0000gn/C/calibre_3.30.0_tmp_n1owQr/aXq8nU.kfx-zip
DeDRM v6.6.1: Trying to decrypt aXq8nU.kfx-zip
Using Library AlfCrypto DLL/DYLIB/SO
Decrypting KFX-ZIP ebook: aXq8nU
Got DSN key from database default_key
Found 1 keys to try after 0.1 seconds
Decrypting KFX DRM voucher: amzn1.drm-voucher.v1.59594eb3-ab2e-4bd7-b10c-4db2d2a834c7.voucher
DeDRM v6.6.1: Failed to decrypt with error: Failed to decrypt KFX DRM voucher with any key
DeDRM v6.6.1: Looking for new default Kindle Key after 0.1 seconds
No k4Mac kindle-info/rainier/kinf2011 files have been found.
DeDRM v6.6.1: Ultimately failed to decrypt after 0.1 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md
Running file type plugin DeDRM failed with traceback:
Traceback (most recent call last):
  File "site-packages/calibre/customize/ui.py", line 171, in _run_filetype_plugins
  File "calibre_plugins.dedrm.__init__", line 621, in run
  File "calibre_plugins.dedrm.__init__", line 571, in KindleMobiDecrypt
DeDRMError: DeDRM v6.6.1: Ultimately failed to decrypt after 0.1 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md
Running file type plugin Package KFX (from KFX Input) failed with traceback:
Traceback (most recent call last):
  File "site-packages/calibre/customize/ui.py", line 171, in _run_filetype_plugins
  File "calibre_plugins.kfx_input.package_filetype", line 22, in run
  File "calibre_plugins.kfx_input.package_filetype", line 35, in run_kfx
  File "calibre_plugins.kfx_input.kfxlib.yj_book", line 77, in convert_to_single_kfx
  File "calibre_plugins.kfx_input.kfxlib.yj_book", line 150, in decode_book
  File "calibre_plugins.kfx_input.kfxlib.yj_book", line 261, in get_container
KFXDRMError: Book container B00HYMCIZC_EBOK.azw has DRM and cannot be converted
Package KFX (from KFX Input) 1.12.1: Packaging /var/folders/b4/q9xk45xx11vg5ph4w7wxdrvw0000gn/C/calibre_3.30.0_tmp_n1owQr/aXq8nU.kfx-zip
Processing container: B00HYMCIZC_EBOK.azw
KFX metadata reader (from KFX Input) activated for /var/folders/b4/q9xk45xx11vg5ph4w7wxdrvw0000gn/C/calibre_3.30.0_tmp_n1owQr/Y76h7O_add_books/0/B00HYMCIZC_EBOK.kfx-zip
Added Chinese Rules to db in: 0.0
Added 1 books in 1.2 seconds
2019-01-13 12:25:05.766 Calibre[4934:1025423] deliverNotificationWithTitle()
* Notification delivered.

[ElleKayEm]

You'll need to go back to a previous version of Kindle for Mac. Be sure to uncheck the option for auto-updates even before uninstalling 1.25. Then make sure it's still unchecked when you get the older version installed. For a link to the last working version, see the bottom of the first post here:

https://www.mobileread.com/forums/showthread.php?t=283371

[net-buoy]

Ahhhhh..... had installed earlier version and it was not working. Forgot that earlier version used a difference directory for its books. Had to look in old directory. Added azw from old directory. Calibre installed KFX instead of KFX-ZIP. NOW you can't simply open by clicking on KFX, you have to right click and identify you want to open file with Kindle. However with Howells plugins, I CAN convert to e-pub WOW...

Thanks....

[JayBrown]

I can import azw (KFX-zip) freshly downloaded with Kindle for macOS v1.25.2 into Calibre with DeDRM and Howell's plugin enabled, all the metadata is there, but I can't read them in the Calibre viewer, and I can't convert them either.

However, there's no going back to earlier versions of Kindle for Mac, because those are 32-bit. Sure, that old junk still runs on macOS, including Mojave, but not for long, so we'll eventually need a method to remove DRM from KFX-zip.

[laiceyshae]

@apprenticealf @apprenticeharper - is this a known issue?

[j-howell]

is this a known issue?

Yes. The FAQ was recently updated to indicate that version 1.25 of Kindle for Mac is not currently supported. (Kindle for PC is not mentioned but the same applies to that software.)

A Recent Change to Kindle for PC/Kindle for Mac