WinterBreak is a jailbreak which was released on New Year’s Day 2025 by HackerDude
It is based on Mesquito
What for? Cuz loading pirated books is trivial?
Well for one, koreader is awesome.
It has preferences I like, syncs reading position to anything else running koreader, and syncs my current reading queue from Dropbox.
Kill ads on the cheaper one would be my main if not only use case.
Installing an alternative reader that can read other formats is mentioned a few times, but honestly, with Calibre that became a non-issue decades ago. Need to transfer them via cable anyway, converting in the process takes a few seconds at most.
Isn’t a cracked (old, I think?) Kindle the only way to pirate KU/DRM titles? At least, that’s what I recall from the last time I looked into it. There’s a book I really wanted to format shift from KU since Google TTS was fucking up all the proper nouns, but I gave up. (It was an obscure book that isn’t available anywhere pirated.)
Ah I wouldn’t know about THAT. I just download and convert epubs from the likes of z-library/libgen, and have done so since getting my first Kindle circa 2012
Giving me something to do with my current kindle. I wasn’t sure how to load to it my downloaded books, so I’ve been suffering on my phone, but hopefully this helps me out a bunch. Thanks. This is a rabbit hole I never knew existed.
What this make? I have my kindle in planemode because I don’t want to get updated and loss my USB connection capabilities
edit: I jailbreaked it, now it can’t get amazon updates anymore!
What are some cool things to do with a jailbroken Kindle?
Installing Koreader which can do a million things, but also playing around with terminal access, python, bash scripting, neofetch, usb-network, SSH. For older kindles: the screensaver hack was my first reason to ever jailbreak one.
The main Reason I’ve done it is to install KOreader since it handles other formats, especially PDFs better than the stock Reader. Though you can also run your own homebrew apps as well like other people have pointed out. I personally don’t bother though since Ereaders are usually best for a single purpose, reading ebooks on an eink display, and mediocre at best for other applications. The eink display tends to be its Achilles heel when it comes to anything that isn’t reading ebooks, at least in my opinion.
According to that site you can downgrade the firmware (some people really disliked the various UI changes and the firmware is getting quite prescriptive)
You can also run your own homebrew apps so I found someone who installed KOReader which they claim is better experience than default reader especially for pdfs and also link better to personal cloud storage.
There’s also ability to use locally stored Web Application Frameworks but I’m not 100% sure what the use case would be.
Read your own EPUB on KOReader, for free.
I have been doing this already for years though? The Epub part. I just download all my books and put them on there.
You used epub files with a Kindle, didn’t convert them or anything? I had no idea Kindles supported epubs, I know someone said they do jecause they emailed the files to their Kindle, but that was Amazon first converting them. I’m just finding Reddit threads saying epubs aren’t supported.
It’s been a while since I used it but from what I recall, yes
Edit:
I do use calibre so I guess that was what I was doing:
Yes, Kindle now supports EPUB, but with some limitations:
Direct EPUB Support: Amazon updated its Send-to-Kindle service to allow EPUB files, meaning you can send an EPUB file via email or the Send to Kindle app, and it will be converted into a Kindle-compatible format.
No Native EPUB Reading: Kindle devices do not natively read EPUB files. They are automatically converted to Amazon’s AZW3 or KFX format.
Workaround for Sideloading: If you want to transfer EPUB files manually, you can use Calibre to convert them to MOBI or AZW3 before transferring them via USB.
Let me know if you need help with any of these steps!
Yes, I was thinking that I haven’t heard of Amazon giving in to using epub natively, without converting to mobi/azw/kfx
Oh I wasn’t aware this was already possible on Kindle. On Kobo it’s very limited.
Well, KOReader offers lots of customisation, including custom fonts, custom refresh rate to increase battery life, integration with Wallabag, WebDAV.
I have a Kindle and a Kobo. I download books from sites on both of them.
Oh finally! I wanted a new launcher installed and have all ads removed. Now I can finally do it! Thanks for the news!!
I have a Kobo which is already pretty open from the start and I can install Koreader, Plato and other softwares on this thing without having to jailbreak it. But this is a really cool thing, and now I may hunt the marketplace for a cheap used Kindle and install Koreader on it without having to worry about which version it has.
I have kept à disconnected kindle for a few years after I completely stopped using amazon for anything - today I wouldn’t even be seen with one as carrying one is a bit like advertising for the company
These are the best ereaders period, my kobo Clara 2e is sluggish, night mode is shit, USB connection to Calibre is “when I want, if I want”… But I’m not a billboard for that business. Too bad, really good devices, and hurray for all the people who will enjoy them away from amazon
You find Clara sluggish with KOreader?
Just by itself ; I checked KOReader on my phone & wasn’t convinced enough to install it on my reader which, beside being that, just works with Calibre from several linux machines (and I don’t mind reading PDFs on my phone, it’s always user manuals and I need fluid zoom + screenshots for diagrams and stuff like that).
Calibre is baked into koreader but go off. I was asking about sluggishness.
It’s my only ereader after owning a paperwhite for years. Yeah, it’s inferior. It sometimes doesn’t register a good, honest tap or swipe to turn pages ; it’s having hard time making a difference between a swipe to change illumination and one to highlight text ; and sometimes you see some shadow text from other pages on your current page
But kobo do sell some books without DRM, you can sideload without even using calibre, and, most importantly, it’s not an amazon product
I own a Clara HD. I don’t find it sluggish (quite snappy unless it’s trying to render badly formed PDFs, there is no ghosting after 3 years of regular use and my inputs are never wrong, but I have been using Koreader on it for all but month 1. It sounds like your screen is polling too slow if you’re getting misinputs, or something else similar. Not an amazon product and doesn’t give me ads either.
Seems I gotta try KOReader then, thanks!
Mine is a 2E, the only less-sluggish thing I found I could do was to limit the number of books on it, which seems ridiculous because I have zero PDFs, only epubs & barely using 2.3GB out of 16, and what does it have to do with page turns anyway ?
Ah, it’ll remind me of the times I “hacked” my kindle just to display the cover of The Hitchhiker Guide To The Galaxy :)
Just put a sticker on top of it that reads “Fuck Amazon” and you can do it guilt free.
My Kobo Forma is perfect. Although I see the official firmware only for the few seconds that KOReader needs to launch.
Thanks, Amazon, for motivating a bunch of people to fucking hate you.
More!
Wow, they decide to kill off downloading books over USB and karma immediately strikes back lol
Huh, TIL, my gf has a relatively old Kindle, are all the models affected?
She uses Calibre to get her books.
Poor wording on my part, they’re removing the ability to download books directly from Amazon to your computer. You can still transfer books via USB using Calibre.
Hers’s an article from The Verge with more info. My apologies.
Ok I get it now, putting more restrictions even when “piracy” makes life easier for the users huh? That is a move.
@kratoz29 @LiveLM it’s the opposite of a competitive market making life easier and more convenient for customers: a race to the bottom, a struggle to create maximum difficulty and hassle at ever-increasing prices.
if the public wants public culture, the public must be prepared to invest in public culture, and that likely implies some form of collective action such as (progressive) taxes or levies. but conversely, the outcomes of that investment must then also be truly public culture with no hassle or punitive action.
She should be fine, but yes on newer kindles like the Scribe (came out in 2022 so not exactly brand-new now) they removed the “mass storage mode” (= what made kindles show up on a pc as a usb drive).
Calibre can work with the newer MTP mode (which is similar to what android phones have) but it’s a lot less reliable and requires that no other app, including the OS, file manager, is accessing the device at the same time. It’s frustrating and I’m very happy to have jailbroken it, now I can use SFTP to browse the folders much more speedily.
Does it let me put Linux on it?
They come with a Linux based OS pre installed. Jailbreaking allows you to effectively become root and gives you a lot more freedom to change stuff.
TLDR: yes
So theoretically I could replace the entire filesystem with a distro of choice?
Theoretically, yes. But I’m not sure if it’s gonna be smooth sailing. You would probably need a custom kernel which supports the kindle hardware. I don’t know if there is any project which already packages/distributes the kindle kernel
Is there a way to turn them into smart screens for home automation? I don’t want a glowing lcd on the wall…
Apparantly you can install Android on some Kindle devices. Then you’d have many possibilities.
As far as I know, it’s literally just Linux, so anything is possible
Great idea
Pocketbook uses a Linux OS
I tried this on my already jailbreakable kindle and it wasn’t very fruitful
Cool!
After the feature of being able to send EPUB files to Kindle through email and them being automatically converted… I have not felt I was missing anything by using standard Kindle software.
So I’d suggest, unless you really really need some obscure feature, Calibre+Kindle is nowadays perfectly fine, and maybe you shouldn’t risk bricking your device.
You like ads?
There are no ads on my Kindle.
OH did they remove that? I’m glad to hear it.
So I’d suggest, unless you really really need some obscure feature, Calibre+Kindle is nowadays perfectly fine, and maybe you shouldn’t risk bricking your device.
Uhm… Well about that… You will not be able to transfer books onto you kindle via USB in about a week. Amazon is going to remove that feature from all Kindles next week. The only way to do that may be through the method you described. But how long will they offer that, if they say they are removing the USB feature because of piracy? You cannot pirate books onto your kindle, when you cannot transfer books from outside of Amazon onto it. (Also this is a nice reason for them to block you from buying books anywhere else than on Amazon, of course)
https://www.theverge.com/news/612898/amazon-removing-kindle-book-download-transfer-usb
I think you fundamentally misunderstand what Amazon is removing. From your linked article:
Once this feature goes away, you’ll still be able to manually copy ebook files and other documents to Kindles over USB using Amazon’s apps or third-party solutions like Calibre. You just won’t be able to download copies of your purchased books to a computer.
The only thing Amazon is removing is the ability to save books that you purchased from them. No more personal backups of legally purchased material, but piracy is still fair game.
Somewhat, I read a German news article that explicitly warned that USB transfer will be blocked. I just searched for an English article to post here afterwards, but I didn’t read it. So… yeah, „lost in translation“
For what it’s worth, the “Download & transfer via USB” feature was applying DRM locked to the key of the specific Kindle device you select, giving you a file that’s incompatible with other devices even if they’re kindles linked to the same Amazon account. For many publishers it also gives files with drastically lower image quality than the Kindle app: about one-fourth to one-third the file size. For a couple examples, a 368MB KFX manga volume has a 125MB AZW3 file and an 8.0MB KFX light novel has a 2.2MB AZW3 file. Those smaller AZW3 files are also similar in size to DRMed EPUB files of the same books from other markets like Kobo and Google Play, so I expect it’s a deliberate choice to limit the quality of formats that are more trivial to strip DRM from.
The best way I’ve found to make personal backups of owned Kindle content is to use a rooted Android device to download everything through the Kindle app, copy the KFX files to a computer, extract the key in a root shell, and then use DeDRM tools on those files with that key.
A quick and dirty shell command I’ve used for that purpose is
egrep -ao 'dsn[0-9a-f]{32}' /data/data/com.amazon.kindle/databases/map_data_storage.db. The key is 32 hex characters.Having a rooted Android device in the first place is the biggest hurdle for being able to do that. This new jailbreak should make it possible to do something similar with e-ink kindles instead.
Okay, yeah, that is definitely concerning.
im glad i got a normal tablet over an ereader, s9fe surprisingly is fire (i read comic books mostly), relatively cheap tablets are solid now, too big at 11 inches to one hand comfortably but better for video so ill make the sacrifice. Expected cheaper tablets to be garbage since my only experience was like a decade ago, now they’re all pretty good, the lenovo ones are better/cheaper off aliexpress and have usable nits (brightness) compared to the us models.
If just for reading ereader is much easier on the eyes and amazing battery life. Completely different products I think.
You know what’s easy on the eyes? Dark mode.
E-reader is a much better experience for reading text but tablets are better for comics. There’s very limited color e-ink options and they’re very expensive with pretty washed out colors.
Is comic rack still the standard software for comics?
It is, and it’s been revived! https://github.com/maforget/ComicRackCE
I use a tachiyomi fork yokai
My kindle have not been connected to the internet since 2015.
This seems wise, is there any perk of having wifi on if you only load books with USB?
Only if you want to synch reading progress between multiple devices.
I’ve never had any reason to connect either. It would just try installing updates that make the UI shittier.
🥳🥳🥳🥳🥳🥳🥳
