Firmware Update Is there a way to roll back to an older firmware?

RobertJSawyer · 10-30-2012, 12:57 AM

Since upgrading my Kindle Keyboard Wi-Fi and my Kindle Keyboard 3G to firmware 3.4, I've discovered that Amazon is now serving me all books in AZW3 format (new titles and also old titles), whereas it used to deliver them in Mobi format. I prefer Mobi format, since the hack that re-instates the "Justification: Left / Full" option on the font menu only works with Mobi-format books (it's grayed out if the book in question is in AZW3 format); I'm hoping by rolling back to an earlier firmware, Amazon will default to delivering books in Mobi format again. Thanks!

hawhill · 10-30-2012, 07:42 AM

No official way. The update packages are incremental and not reversible.

That said, we have full backup and restore facilities explored in the developer's corner. It's well tested, but of course on your own risk. A downgrade is possible that way. Look at ATK or k3flasher for doing this. But remember: a) your own risk, b) charge your Kindle before messing with this, c) backup your kindle before flashing something else to it, d) double check parameters. You'll find more info in the developer's corner in the debrick threads.

eureka · 10-30-2012, 09:07 AM

Note, that after rollbacking (by any way) your KK will be a target for receiving automatic update to 3.4 again. AFAIK, there is no solution to stop it at the moment (I may be wrong).

baggyrinkle · 10-30-2012, 10:34 AM

Thanks, I'm glad you mentioned that. I checked and noticed that on AWZ3 books I cant change the fonts on my K3. However, if you strip the drm and convert to mobi in Calibre, you can restore the fonts and such. Another reason DRM sucks! Which is a lot easier than rolling back your FW.

geekmaster · 10-30-2012, 03:38 PM

Quote:

Originally Posted by eureka

Note, that after rollbacking (by any way) your KK will be a target for receiving automatic update to 3.4 again. AFAIK, there is no solution to stop it at the moment (I may be wrong).

Perhaps you can prevent an update by installing a hack that makes the update fail to install. For example, on the K4, the screensaver hack can do that.

RobertJSawyer · 10-31-2012, 02:33 PM

Thanks, everyone! Can anyone confirm my suspicion that it's the updating to firmware 3.4 that causes the Kindle Keyboard to start receiving books in AZW3 format? That is, was it 3.4 that added support for AZW3 to the Kindle Keyboard? Much appreciated!

NiLuJe · 10-31-2012, 05:16 PM

@RobertJSawyer: Yep. KF8 support was introduced in FW 3.4 on this device.

montalex · 11-01-2012, 07:38 AM

Perhaps simpler to convert AZW3 to mobi with Calibre? Search Apprentice Alf, as there is no posting on removing DRM here, but it is very simple to do. I, too, don't like the default margins, and always set mine to 10.

10-30-2012, 12:57 AM	#1
RobertJSawyer Guru Posts: 730 Karma: 3871570 Join Date: Jun 2006 Location: Toronto Device: Kobo Libra 2, Clara 2E, and Clara HD; Kindle PaperWhite	Is there a way to roll back to an older firmware? Since upgrading my Kindle Keyboard Wi-Fi and my Kindle Keyboard 3G to firmware 3.4, I've discovered that Amazon is now serving me all books in AZW3 format (new titles and also old titles), whereas it used to deliver them in Mobi format. I prefer Mobi format, since the hack that re-instates the "Justification: Left / Full" option on the font menu only works with Mobi-format books (it's grayed out if the book in question is in AZW3 format); I'm hoping by rolling back to an earlier firmware, Amazon will default to delivering books in Mobi format again. Thanks!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Touch [Solution] Are you stuck on the older build of firmware 1.9.16 ?	Koboyashi	Kobo Reader	6	03-23-2012 03:39 AM
Seriously: Can I roll back to firmware 1.0?	fred_yu_job	Kobo Reader	12	07-04-2010 12:55 PM
RNDIS driver installation messed up my wireless - How to roll back?	n4ru	Kindle Developer's Corner	0	02-10-2010 01:24 AM
Downloading v.1.4 firmware from new Cybook to older one	maninlek	Bookeen	6	12-27-2009 12:12 PM
Roll back to firmware 538?	Georgios	Bookeen	3	07-17-2008 06:59 PM

10-30-2012, 07:42 AM	#2
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	No official way. The update packages are incremental and not reversible. That said, we have full backup and restore facilities explored in the developer's corner. It's well tested, but of course on your own risk. A downgrade is possible that way. Look at ATK or k3flasher for doing this. But remember: a) your own risk, b) charge your Kindle before messing with this, c) backup your kindle before flashing something else to it, d) double check parameters. You'll find more info in the developer's corner in the debrick threads.

10-30-2012, 09:07 AM	#3
eureka but forgot what it's like Posts: 741 Karma: 2345678 Join Date: Dec 2011 Location: north (by northwest) Device: Kindle Touch	Note, that after rollbacking (by any way) your KK will be a target for receiving automatic update to 3.4 again. AFAIK, there is no solution to stop it at the moment (I may be wrong).

10-30-2012, 10:34 AM	#4
baggyrinkle Early Adoptor Posts: 38 Karma: 16942 Join Date: Dec 2010 Location: Texas Device: Kindle3 Kindle4 Kindle Fire Kindle PW2	Thanks, I'm glad you mentioned that. I checked and noticed that on AWZ3 books I cant change the fonts on my K3. However, if you strip the drm and convert to mobi in Calibre, you can restore the fonts and such. Another reason DRM sucks! Which is a lot easier than rolling back your FW.

10-31-2012, 02:33 PM	#6
RobertJSawyer Guru Posts: 730 Karma: 3871570 Join Date: Jun 2006 Location: Toronto Device: Kobo Libra 2, Clara 2E, and Clara HD; Kindle PaperWhite	Thanks, everyone! Can anyone confirm my suspicion that it's the updating to firmware 3.4 that causes the Kindle Keyboard to start receiving books in AZW3 format? That is, was it 3.4 that added support for AZW3 to the Kindle Keyboard? Much appreciated!

10-31-2012, 05:16 PM	#7
NiLuJe BLAM! Posts: 13,477 Karma: 26012492 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	@RobertJSawyer: Yep. KF8 support was introduced in FW 3.4 on this device.

11-01-2012, 07:38 AM	#8
montalex Fanatic Posts: 556 Karma: 1283268 Join Date: Mar 2010 Device: KindleDX,Kindle 4, Kindle Keyboard 3G	Perhaps simpler to convert AZW3 to mobi with Calibre? Search Apprentice Alf, as there is no posting on removing DRM here, but it is very simple to do. I, too, don't like the default margins, and always set mine to 10.

Advert

Advert