[Nexus 7 General] Burlyirishdude:
Ok so i got some down time and i went looking to see this, "Internal storage," question. The "internal storage" is simply what Win7 calls the entire File system when you connect the nexus 7 to the computer. So internal storage is technically a folder just not "on" the N7. So when you plug in the n7, the Device beeps and says in the notification area, "Device is connected as a media device" or something relatively close to that. Then on Win7 the "Autorun" dialog box pops up and you click view folder. That's where it reads "internal storage" and then it'll tell you xGB for however big your N7 is.

Inside that folder you see all the folders that you would normally see if you were using an explorer internally on the N7 without connecting it to a PC/Mac. So folders like, "Android: Data: DCIM: and then you see the "Kindle" folder. In the steps of the walkthrough you should see a screenshot of how i have all of the 3 files you, "stole" back from Calibre just thrown in there. There is no need to worry about overwriting any of the files if you let Calibre do the output for you.(since it names the file based on the data you input+the appropriate file extension)

Step 15 is what the inside of my Kindle folder looks like.

It has 3 Files. The coverart, the book(mobi), and the OPF - -Which i believe is the Metadata the Calibre uses, and from what the almighty google told me it will OVERRIDE any other Metadata you have assigned to said *.mobi file.

I would also suggest maybe turning on the ability to see the file extensions. I don't know your level of Computer nerdery so i'll give you the links i googled:

How to Show file extensions on a PC/WIN7:

http://windows.microsoft.com/en-US/windows-vista/show-or-hide-file-name-extensions

How to Show File Extensions on a Mac/OSX

http://support.apple.com/kb/PH10845

So i'm hoping this may help out(again not sure if you already have this done but it's worth investigating) b/c sometimes when the file extensions are turned off - - you'll only see the name you've "renamed" and it may look correct. IE: BadassBook.mobi and you swear it's the right format...when really (once you show the file extensions) it's real name for file purposes is something like BadassBook.mobi.Not.the.right.file.extension.silly

Now b/c it's been a few people since i've responded. Give me what step you get to, based on the guide("i see the error at Step x") And i will try and diagnose from there.

EDIT:: Just read about the lock/unlock. I wouldn't go on record saying it's not an issue but i would say that the Unlock route doesn't mess with how we are doing this process. Now "Sideloading" a book, where as it's being essentially pushed from say an SD card or from what i understand "any other folder not the designated folder for the eReader" So i would say it doesn't have to do with the Lock/Unlocked N7. Nice guess. The reason i Unlocked is to try out some ROMS, load some programs, try out some developer stuff and then i found i liked the ROM that shipped with the thing so i left it be sans unlocking it.

Hopefully it's something simple like a capitalization issue of the Kindle Folder name, or a file extension, or maybe a setting/step we missed. I'm here to help so let's nail it down and get you back to enjoying your books. :good:

-BiD