Tools [Showcase] ChatGPT and co. on default Kindle reader app

[Mino101]

I replaced the wikipedia mini window in the default reader app, with Generative AI like ChatGPT and Gemini

- I injected custom classes in wikipedia.jar file that change the wikipedia url to a custom url. The url is set by editing a file.
- I wrote a simple cloudflare server that receives the Kindle's requests and forwards them to any API of my choice (ChatGPT, Gemini...). The prompt is set as an environment variable that I can edit from my phone / computer.



Development screenshots:

Spoiler:

I will document my discoveries and publish them, in the future when I have some free time.

[BionicGecko]

This is awesome!

[Quoth]

And appalling as ChatGPT and similar are environment destroying toys. Illegal scraped content and unreliable output. So parasites and also dishonestly promoted.

[cdhigh]

The next step should be adding an input textbox and implementing a multi-turn conversation feature.

[briton]

Originally Posted by Mino101

I replaced the wikipedia mini window in the default reader app, with Generative AI like ChatGPT and Gemini

- I injected custom classes in wikipedia.jar file that change the wikipedia url to a custom url. The url is set by editing a file.
- I wrote a simple cloudflare server that receives the Kindle's requests and forwards them to any API of my choice (ChatGPT, Gemini...). The prompt is set as an environment variable that I can edit from my phone / computer.



Development screenshots:

Spoiler:

I will document my discoveries and publish them, in the future when I have some free time.

Cool! nice job

[qasim.ali97]

Originally Posted by Mino101

I replaced the wikipedia mini window in the default reader app, with Generative AI like ChatGPT and Gemini

- I injected custom classes in wikipedia.jar file that change the wikipedia url to a custom url. The url is set by editing a file.
- I wrote a simple cloudflare server that receives the Kindle's requests and forwards them to any API of my choice (ChatGPT, Gemini...). The prompt is set as an environment variable that I can edit from my phone / computer.



Development screenshots:

Spoiler:

I will document my discoveries and publish them, in the future when I have some free time.

How can I use Chatgpt on kindle. Please if u know any guide share so I can use it

[qasim.ali97]

Originally Posted by cdhigh

The next step should be adding an input textbox and implementing a multi-turn conversation feature.

Hey I read your post from 2023 where you said you integrated Chatgpt with your kindle. I need help regarding that. Firstly which ereader should I buy so I can jailbreak it and how to install Chatgpt afterwards. Thankyou

[Sanctuary_L]

Are you interested in exploring page flip animation? KT6 uses MT8110 CPU, the same as PW5, and it also supports page turning animation, but Amazon does not seem to enable it on FW, so we can see that it works after enabling page turning animation on KOReader. I think it should be possible to enable it by modifying the system file, but since I don't understand the code of Kindle firmware, I have no way to do this. If this is feasible, it would give us another option when buying a Kindle.

[shamanNS]

@Sanctuary_L You could maybe check if availability of that page turn animation functionality is controlled by the content of
"/etc/deviceConfig.conf" / by devcap-get-feature? Similarly to how someone managed to do this "waterproof" mod on Kindle Voyage:

https://www.mobileread.com/forums/sh...d.php?t=343353

[Sanctuary_L]

Originally Posted by shamanNS

@Sanctuary_L You could maybe check if availability of that page turn animation functionality is controlled by the content of
"/etc/deviceConfig.conf" / by devcap-get-feature? Similarly to how someone managed to do this "waterproof" mod on Kindle Voyage:

https://www.mobileread.com/forums/sh...d.php?t=343353

Unfortunately, I did find a suspected configuration: swipeMode.available, but it didn't work after changing it. Maybe this is not the right way.

[Sanctuary_L]

Originally Posted by shamanNS

@Sanctuary_L You could maybe check if availability of that page turn animation functionality is controlled by the content of
"/etc/deviceConfig.conf" / by devcap-get-feature? Similarly to how someone managed to do this "waterproof" mod on Kindle Voyage:

https://www.mobileread.com/forums/sh...d.php?t=343353

I found out that I was wrong, it was actually enabled, but I traditionally thought it should be turned on in the comic book settings, it should actually be enabled in the text book, and when I checked I found that there was an extra page turning animation effect switch in the text book settings, yes, I now have the page turning animation turned on on 24 basic. Thank you very much for your enlightenment. I thought I should make a post to let more people who need it know how to do it.

Damn Amazon, they might use the page-turning animation as a selling point in the update of Basic in two or three years, but in fact 24 Basic already supports it, they didn't do anything, just changed a configuration.

[am174744]

I managed to replicate this hack with a little bit of help from the OP. This is an old post but I'm adding more details in case someone stumbles upon it like I did and could use more help (like I did).

- The first step is of course to hack your kindle, install KUAL and USBNetwork. These are described in detail in other posts.

- Next you connect to your kindle via USBNetwork and ssh. Find the wikipedia.jar file which is located in "/opt/amazon/ebook/lib" and copy it to your local drive (I used Cyberduck for that).

- Use a java bytcode editor (OP recommended https://github.com/Col-E/Recaf) to edit the wikipedia.jar (I ran it in the GUI version "java -jar recaf-gui-0.8.8.jar")

- In the bytcode editor find the Classes directory and navigate to "com.amazon.ebook.booklet.reader.plugin.wikipedia. service.UriLocator". Find the "https://wiki-acx.amazon.com" string - you will need to replace it with the url of your own service.

- Set up your own simple server. OP used Cloudflare but I used Pipedream as it is easy to set up and free for this use case. Just a simple trigger with code is enough. I've never used Pipedream before but it was strightforward enough with help from AI.
Here is the code I used to interpret requests from kindle and forward them to my AI endpoint: https://pastebin.com/hzj5SW7f. The code has the expected request and response format (I found it in wikipedia.jar but you don't have to).
Few notes:
-- I used OpenRouter but you can obviously change that. You'll need your own API key.
-- The AI model has to be pretty fast (e.g. gemini flash) or the request will time out.
-- Modify the prompt to get the behavior you want.

- Replace the "https://wiki-acx.amazon.com" with the address of your server. If using Recaf GUI, left click on the method containing the string, click edit in assembler, replace the string, save your change, go back to the UriLocator.class to make sure the change is reflected. Once done export the application to a new jar.

- SSH in to your kindle via USBNetwork again, enable write mode ("mntroot rw"), rename wikipedia.jar to something else and copy your new jar as wikipedia.jar.

- Restart the kindle and try it out. It may work. It only took me 5 tries but I'm exceptionally gifted.

Feel free to ping me with questions.