Automotive Holiday Deals Books Gift Guide Books Gift Guide Shop Men's Cyber Monday Deals Week Learn more nav_sap_SWP_6M_fly_beacon Black Friday egg_2015 Fire TV Stick Beauty Deals Gifts for Her Amazon Gift Card Offer mithc mithc mithc  Amazon Echo Starting at $49.99 Kindle Voyage Outdoor Deals on HTL

Customer Discussions > Kindle Help Forum

Downloaded mobi won't open??

Sort: Oldest first | Newest first
Showing 1-8 of 8 posts in this discussion
Initial post: Dec 27, 2011 5:30:09 PM PST
Did some free downloads from Baen Books. they came as e-mails. Had to tell the Kindle to fully download them for each , but when I tried to open them I got this message "unable to find viewer for application/x-mobipacket-ebook" What gives? I thought Kindle was supposed to be able to open mobi files and Baen had it has "a Kindle Format" Any tips or clues for getting them to work?

Posted on Dec 27, 2011 5:37:05 PM PST
If you copied them to the DOCUMENTS folder on the Fire, and tapped DOCS, I believe they would open. Mine do, although mine are not from Baen. You can try putting the files in the BOOKS folder on the Fire, but they may not show up when you tap BOOKS. But you should see them if you tap DOCS.

The Fire seems to be having some problems with mobi files downloaded directly to it. I don't know why and haven't gotten around to finding out. But I cannot download directly from I get the same kind of message.

Here is a thread about why some open in Books, some in Docs:

I think right now, copying via usb is the only choice until whatever it is gets fixed.

In reply to an earlier post on Dec 29, 2011 2:14:39 PM PST
Last edited by the author on Dec 29, 2011 2:26:09 PM PST
I can't get the FIRE to recognize any format other than PDF. Even the .mobi files i move into manually don't show up.

I've gone through and manually cleared EVERY default But when I download a .mobi file with the kindle browser i get "file cannot be opened." it doesn't even give me the option to pick a program.

What gives? I have some x-mas money burning a hole in my pocket. The longer this goes unresolved, the more I find... alternatives... to amazon e-books.

Edit: according to the Android forums the Kindle fire WONT open .mobi that isn't bought directly from amazon.

You have to get a SECOND program with the SAME FUCTIONALITY as default to TAKE UP MORE PRECIOUS MEMORY because Amazon is being a bitch about public domain books.

this is what you need

Posted on Dec 29, 2011 2:24:56 PM PST
Last edited by the author on Dec 29, 2011 2:25:16 PM PST
I haven't had any problems opening the mobi ones that I copied via usb. I haven't tested any more actual downloads directly to the Fire.

Someone said there might be a problem with .prc, but the exact same file with .mobi works fine. Are these really .mobi? They are practically the same format.

Are you sure these files aren't copy-protected? There is a secure mobi and an unsecured mobi. I use the Calibre program on my computer, and that tells you immediately if a file is protected by DRM. But I don't know any other way.

Do you want to say where you got those files? Or go back there and read the FAQ and HELP. If they don't mention Kindle specifically somewhere on the site, I don't download from there. Some sites take your money without making clear they are using secured mobi.

In reply to an earlier post on Dec 29, 2011 2:27:57 PM PST
I'm trying to pull the .mobi files directly from project gutenberg.

Works flawlessly for me mum's e-ink kindle, but not on my fire

Posted on Dec 29, 2011 2:49:27 PM PST
You mean download directly from there to the Fire --using WEB? Not working for me either. Although I did not try their .azw choice of file extension.

I think you will have to download to computer and copy via usb to the BOOKS or DOCUMENTS folder. Go up to my other post and see the address for the thread about why some of them appear when you tap BOOKS, and some only if you tap DOCS. I think gutenberg's will show up under BOOKS if you put them in the BOOKS folder. But I haven't done that. I like mine showing up under DOCS to separate them from my Amazon books.

And yes, even on my old K2 I could use the web browser to do direct downloads from (same books, better navigation for some items).

Posted on Dec 29, 2011 3:15:39 PM PST
Thanks for your help bud :)

Here's my work-around:

1) Download and install aldiko

2) download ePub instead of .mobi from your browser.

3) open it and associate it with "aldiko import"

4) boom goes the dynamite.

This "software lockdown" trend in mobile computing is getting tiresome. Amazon sure is making me jump through hoops to read books on my hardware. I wish I could reformat my kindle and start with a fresh android OS.

ALSO, yes Calibre is a fantastic program. I would highly recommend it. I still have to convert to epub (aldiko) or pdf (fire default) tho.

Posted on Dec 29, 2011 3:40:54 PM PST
I like ALDIKO also. I didn't want to bother converting the hundreds of mobis I've collected, or re-download them, but I got Aldiko for ADE epub library books. Then I discovered why I couldn't get the Kindle editions -- once I changed to Optimize for Desktop -- the right Overdrive website comes up.

I installed the nook app, too. Direct to Fire from B&N. I only had 3 nook books but one of them was something that never came out for Kindle, and I wanted to read it. Easy.

Amazon does have to get it together and realize other apps work, but their own device doesn't. Same for downloading data files from the Amazon Cloud Drive, only.doc downloads. No luck even with .txt. But DropBox doesn't have any trouble with this task.

There's work to be done here.
‹ Previous 1 Next ›
[Add comment]
Add your own message to the discussion
To insert a product link use the format: [[ASIN:ASIN product-title]] (What's this?)
Prompts for sign-in


This discussion

Discussion in:  Kindle Help Forum
Participants:  3
Total posts:  8
Initial post:  Dec 27, 2011
Latest post:  Dec 29, 2011

New! Receive e-mail when new posts are made.
Tracked by 2 customers

Search Customer Discussions