From what I understand: You need a K3 to rip the rootFS from.
On that K3 you need approx 0.6 GB for the FS itself and than the rest for the encrypting routine to make a Kindle readable update package.

Regards,

EqX

1) You need a k3 because it is illegal for me to redistribute the files. If it were not, it would be as easy as me releasing a 300MB file. You can use a friends' k3 too because nothing on the k3 is permentally modified and no personal information is stored.
2) You "uninstall" by restoring from the backup packaged generated from the k2. Nothing is installed on the k3.
3) if amazon releases 3.1 update. If it is minor, it MAY work. If it is major or modifies one of the three files I modified, then it will fail. My goal is to have no files modified, then you can upgrade.

I can't run update ('update_k2_2.5.8_prepare_kindle.bin') on my K2, the item 'Update Your Kindle' still disabled.

My K2 jailbroken, using NiLuJe's SS and Font Hack

yifanlu- I know you plainly stated it, but just to double confirm: this will only work with K2, US version, and will not work with DX/G?
Are you planning on a DXG version?
That would make some of us deliriously happy...

I am planning to make it for every kindle K2, K2i, DX, DXi, DXG (as stated in the title). Right now, the first alpha version will be for kindle 2 only so I can work out bugs.

What is your Kindle 2 version? (Including the long OTA number, you can find it in the settings page)

EDIT: I've updated the zip file in the post, download it again, it should work now.

I using Kindle 2 International (B003), Kindle Software version 2.5.8 (555370010).

I can not run this update even with the updated 'update_k2_2.5.8_prepare_kindle.bin' file.

I can make a package for k2 international, but it won't be tested. do you want that?

Now if this comes to fruition, it could be used to replace the AD-supported firmware of the newly announced kindle!!

I don't think so. this is for porting the 3.1 firmware to kindle 2/DX/G.
I'm sure someone will find a really simple way around that ad-supported crap in no time. ;)

I may waiting a little bit. :D

yifanlu, great job!
This hack surely will make many happy. Hope you could finish testing early.

BTW, when it is done, does it mean we can have some k3-specific functions, such as dictionary look-up, pdf darker, etc, on Kindle DX or even Kindle 2?

Thank you very much.

Yup. Everything you can do on k3.

I just got a DX and the 3.1 software would be really fantastic to me.

Knowing little of programming, i wondering as kindle dx does not have a wifi but a 3G module and my kindle 3, on the contrary, has only a wifi module, would the package tranplanted from Kindle 3 to DX work properly?

And could you please estimate when will a useable package for DX be released?

Thanks.

The thing is, nobody is helping me test :( (or they're not telling me, I need to know If it works or not). So currently, I can't do much but wait. If anyone can send me a DX (broken or not), I can probelty get it working in a week or so. If someone helps me test by having a DX with recovery access, I could probelty get it working in a month or two.

What a pity. I myself wish i could help but i know very little about both programming and linux.

I donot sure about the meaning of "having a DX with recovery access". Does it mean an access permission or a knowledge about how to recover DX when something unwanted happens.

I think many people would like to offer a hand if they know, I will try to tell people who are unsatisfied about current kindle version of their kindle dx.