Tools Snapshots of NiLuJe's hacks

[Frogm4n]

Originally Posted by chaitanyaI

I found a temporary solution until developers pitch in to correct the issue.

The issue was corrected days ago. There are literally dozens of posts about it, and even in this very thread.

[Ebookus]

Originally Posted by Frogm4n

The issue was corrected days ago. There are literally dozens of posts about it, and even in this very thread.

reading is hard.

[chaitanyaI]

Originally Posted by Frogm4n

The issue was corrected days ago. There are literally dozens of posts about it, and even in this very thread.

Thank you @Frogm4n for pointing that out.

The solution worked for 99.99% of people, I definitely agree with that.
But I am in that 0.001% of people who are using KPW1 and not updated from 5.3.3, as it is working beautifully with the help of all developers here.
Suddenly it stopped working in my PW1, and I went through all threads to find solutions, and I tested almost all methods from the day new "dev cert" release (Maybe I missed some posts which actually would have helped me).
Nothing helped me to make KUAL work until I updated to 5.6.1.
.......Why?? I don't know it is some random testing.
I posted Method I followed here, not to offend anyone, but maybe someone like me searching for a solution may land up in my post and get some help.

I love you all, devs here. You are all great.

[rafalele]

Originally Posted by chaitanyaI

Hi all,
for all who have issue that "The title is not signed by a registered developer"
I found a temporary solution until developers pitch in to correct the issue.
This is the only solution that worked for me on KPW1 after 3 days and multiple resets. Upgrade to 5.6.1.1 finally after everything worked for me.

I will say what I done, so modify it according to your needs

- Freshly reset the device
- Right now I am in 5.3.3
- Updated it to 5.4.4 (" why, I don't know. I thought it is safe for 5.4.x so why don't update to border ")
- Now jailbreak it as the official snapshot page says.
- Simply put, download "kindle-jailbreak-1.16.N-r19426.tar.xz" > extract kindle-5.4-jailbreak.zip > extract and put all files into root folder of kindle.
- Come to settings > update you will see ***JAIL BREAK***
- Now what I done is, copy the latest .bin for K5 from DevCerts-20250419-KeyStore.zip, placed in root folder
- again, settings > update
- now, install MRPI from this link as instructed. Once you are in 5.6.x.x you cant update any .bin by normal method only MRPI is the way for now.
- now copy latest Kual from official page and extract KUAL-KDK-2.0.azw2 and place in documents folder
- Still you can see when you open KUAL it says error.
- Now magic part, update kindle KPW1 to latest firmware, you know how -> place in root folder then settings > update
Check this screenshot of kindle root folder before updating
- while booting make sure you seen ***BRIDGE+***
- Volla now open KUAL , it worked for me.
- next install extensions like KOREADER or update .bin things using MRPI.

I am happy to write this post, as this should help someone who is struggling to use their old kindles.
This is chaitanya ...

Hi.

First of all thank you for posting your experience. Generic solution did not work for me, so I will try yours.

I also have PW1 but I have 5.3.4 firmware version. How did you update to 5.4.4?

Thank you in advance.

[chaitanyaI]

Originally Posted by rafalele

Hi.

First of all thank you for posting your experience. Generic solution did not work for me, so I will try yours.

I also ha PW1 but I have 5.3.4. How did you update to 5.4.4?

Thank you in advance.

Hi rafalele,

As you want to upgrade, the process is straightforward, I guess.
try this method.
1) download the bin file from here
2) Place in the root folder of Kindle,
3) Go to settings > update the kindle : click it
4) It should update to 5.4.4.2 now.

- I think you can update from 5.3.3 to 5.6.1 directly no need to update to 5.4.4.2
- Do all the steps ( Dev cert + MRPI + KUAL ) when you are in 5.3.3 then in final step update to 5.6

[rafalele]

Originally Posted by chaitanyaI

Hi rafalele,

As you want to upgrade, the process is straightforward, I guess.
try this method.
1) download the bin file from here
2) Place in the root folder of Kindle,
3) Go to settings > update the kindle : click it
4) It should update to 5.4.4.2 now.

- I think you can update from 5.3.3 to 5.6.1 directly no need to update to 5.4.4.2
- Do all the steps ( Dev cert + MRPI + KUAL ) when you are in 5.3.3 then in final step update to 5.6

Thank you very much.

File 5.4.4 downloaded, as soon as I arrive home and try your method I will post my results.

[PacifistClutch]

Originally Posted by Frogm4n

The issue was corrected days ago. There are literally dozens of posts about it, and even in this very thread.

I am one of the people using a PW1 with 5.3.3 firmware, for whom updating the certificates and Kual binary still gives the error "This item is not signed by an authorized developer. Please contact the developer." I did not see any point in posting a "me too", but I have been lurking in hopes that a developer will fix the problem with this configuration.

I have been afraid to update the firmware because of the problems I understand are caused by > 5.6, but if that is the best option, I will do that. Thank you chaitanyaI for sharing your experience, and thank you to NiLuJe and everyone else who has contributed to these wonderful tools!

[rafalele]

Originally Posted by chaitanyaI

Hi rafalele,

As you want to upgrade, the process is straightforward, I guess.
try this method.
1) download the bin file from here
2) Place in the root folder of Kindle,
3) Go to settings > update the kindle : click it
4) It should update to 5.4.4.2 now.

- I think you can update from 5.3.3 to 5.6.1 directly no need to update to 5.4.4.2
- Do all the steps ( Dev cert + MRPI + KUAL ) when you are in 5.3.3 then in final step update to 5.6

Hi.

I have reset my kindle PW1 and now I can not register it. It is connected to my Wifi but tells all time "Connection error. Try again later." I am in 5.3.4 firmware version. How did you manage to register it after reseting it?

PD: I have seen I can continue with the process without registering. I will try it when updating to the 5.6.1 version

PD2: Registered after updating to 5.6.1 with no problem

THANK YOU VERY MUCH!!! I have Koreader last version running again in my PW1 following the instructions you posted here: https://www.mobileread.com/forums/sh...postcount=1333

Of course I want also to thank all the developers that made possibile to use my Kindle with a better reading software through all this 13 years.

The only thing that I want to know if there is a way to prevent Amazon to update my Kindle in any way (firmware, contents, jailbreak...) because I want to use OTA updates for Koreader and I need the Wifi connection for it. Until this reset and update I have made I had installed the backdoor method.

[rafalele]

Originally Posted by chaitanyaI

Hi all,
for all who have issue that "The title is not signed by a registered developer"
I found a temporary solution until developers pitch in to correct the issue.
This is the only solution that worked for me on KPW1 after 3 days and multiple resets. Upgrade to 5.6.1.1 finally after everything worked for me.

I will say what I done, so modify it according to your needs

- Freshly reset the device
- Right now I am in 5.3.3
- Updated it to 5.4.4 (" why, I don't know. I thought it is safe for 5.4.x so why don't update to border ")
- Now jailbreak it as the official snapshot page says.
- Simply put, download "kindle-jailbreak-1.16.N-r19426.tar.xz" > extract kindle-5.4-jailbreak.zip > extract and put all files into root folder of kindle.
- Come to settings > update you will see ***JAIL BREAK***
- Now what I done is, copy the latest .bin for K5 from DevCerts-20250419-KeyStore.zip, placed in root folder
- again, settings > update
- now, install MRPI from this link as instructed. Once you are in 5.6.x.x you cant update any .bin by normal method only MRPI is the way for now.
- now copy latest Kual from official page and extract KUAL-KDK-2.0.azw2 and place in documents folder
- Still you can see when you open KUAL it says error.
- Now magic part, update kindle KPW1 to latest firmware, you know how -> place in root folder then settings > update
Check this screenshot of kindle root folder before updating
- while booting make sure you seen ***BRIDGE+***
- Volla now open KUAL , it worked for me.
- next install extensions like KOREADER or update .bin things using MRPI.

I am happy to write this post, as this should help someone who is struggling to use their old kindles.
This is chaitanya ...

THANK YOU VERY MUCH!!!

Koreader working after following your instructions.

Now I have it registered after updating to last firmwre version 5.6.1.

Somebody knows if there is a way to prevent Amazon to update/change my Kindle software? Before I had the "backdoorlock" installed, but I do not know if theres is something like that for 5.6.1 version. I would like to use OTA updates for Koreader.

[DNSB]

Originally Posted by rafalele

Somebody knows if there is a way to prevent Amazon to update/change my Kindle software? Before I had the "backdoorlock" installed, but I do not know if theres is something like that for 5.6.1 version. I would like to use OTA updates for Koreader.

You could try the OTARenamer addon but for a PW1 (5th gen), 5.6.1 seems to be the last firmware version and after 10 years, I personally doubt that Amazon is going to issue another firmware upgrade (the files in 5.6.1 are dated from 2015-Jun-23).

[sjm88]

Originally Posted by PacifistClutch

I am one of the people using a PW1 with 5.3.3 firmware, for whom updating the certificates and Kual binary still gives the error "This item is not signed by an authorized developer. Please contact the developer." I did not see any point in posting a "me too", but I have been lurking in hopes that a developer will fix the problem with this configuration.

I have been afraid to update the firmware because of the problems I understand are caused by > 5.6, but if that is the best option, I will do that. Thank you chaitanyaI for sharing your experience, and thank you to NiLuJe and everyone else who has contributed to these wonderful tools!

I also have this exact same problem. I have tried absolutely everything - including updating to 5.6.1.1 etc, and nothing is working. VERY grateful if there is someone who has knowledge of this and is able to advise. Currently KUAL is completely non-functioning on a Paperwhite v1.

[rafalele]

Thank you very much DNSB.

Already done.

[possumbly_human]

Originally Posted by chaitanyaI

Hi all,
for all who have issue that "The title is not signed by a registered developer"
I found a temporary solution until developers pitch in to correct the issue.
This is the only solution that worked for me on KPW1 after 3 days and multiple resets. Upgrade to 5.6.1.1 finally after everything worked for me.

I will say what I done, so modify it according to your needs

- Freshly reset the device
- Right now I am in 5.3.3
- Updated it to 5.4.4 (" why, I don't know. I thought it is safe for 5.4.x so why don't update to border ")
- Now jailbreak it as the official snapshot page says.
- Simply put, download "kindle-jailbreak-1.16.N-r19426.tar.xz" > extract kindle-5.4-jailbreak.zip > extract and put all files into root folder of kindle.
- Come to settings > update you will see ***JAIL BREAK***
- Now what I done is, copy the latest .bin for K5 from DevCerts-20250419-KeyStore.zip, placed in root folder
- again, settings > update
- now, install MRPI from this link as instructed. Once you are in 5.6.x.x you cant update any .bin by normal method only MRPI is the way for now.
- now copy latest Kual from official page and extract KUAL-KDK-2.0.azw2 and place in documents folder
- Still you can see when you open KUAL it says error.
- Now magic part, update kindle KPW1 to latest firmware, you know how -> place in root folder then settings > update
Check this screenshot of kindle root folder before updating
- while booting make sure you seen ***BRIDGE+***
- Volla now open KUAL , it worked for me.
- next install extensions like KOREADER or update .bin things using MRPI.

I am happy to write this post, as this should help someone who is struggling to use their old kindles.
This is chaitanya ...

Thank you so much! I followed this exactly and now KUAL works again on my PW1! I really missed the small QOL features that KUAL and Koreader provide.

Thank you to the devs who provided the updated certs and patched KUAL as well!

[fbman]

Has anybody got rid of the message "This item is not signed by an authorised developer. Please contact the developer." on PW2?
I'm running fw 5.4.3.2 and don't want go to latest 5.12.2.2.

[IJustWantToRead]

Just wanted to say I'm also in the same boat with not being able to open KUAL.

Initially got the expired certs error and now get "This item is not signed by an authorised developer. Please contact the developer."

Kindle Paperwhite 1 with fw 5.3.3 and Aeroplane Mode constantly on.

I'm hesitant to update the fw as @chaitanyal suggests because the newer it gets the more issues there appears to be.

Tried updating just the keys, didn't work. Tried a factory reset and full fresh jailbreak and KUAL install, didn't work.

Tried to change the date just to get past the cert expiration but I can only figure out how to change the time, not the date.

Luckily this has only happened to my Kindle because I was trying to put new textbooks on for uni so I've warned my partner never to exit KOReader on theirs. I would greatly appreciate some help as I struggle to read for long periods of time on my computer screen and would really rather read textbooks on the Kindle instead.

Thank you!