Amazon recently disabled registration for old Kindles (I would link a press release/news article here, but I can't find one at the moment. It was everywhere a few months ago).
I like the Kindle 4 and similar models, and have a few that I got from car boot sales, eBay, etc. and I would like to fake register them without any connection to Amazon. Does anyone know how I would go about this?
fakereg only works on newer Kindles. I have searched the forum and only found people asking "How?" with no useful responses.
I have done some research on community Discord, and because Discord is an unsearchable non-public data silo, I want to share my findings here, in case someone else can help.
Quoting from my posts elsewhere:
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13/04/2026: Goboisback and SpartanHeavy {on Kindle Modding Community Discord} both have registered Kindle 4s on this server; I have asked about their registrations
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https://i.imgur.com/VQjfBMx.png
https://i.imgur.com/hVFOxJJ.png
reginfo:
Code:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><response><user_device_name>My Private Kindle 4</user_device_name><given_name>Joe</given_name><name>Joe Bloggs</name><alias>JB</alias><account_pool>Amazon</account_pool><kindle_email_address>joe.bloggs@kindle.com</kindle_email_address><user_directed_id>1234567890</user_directed_id><device_type>Kindle 4</device_type><home_region>USAmazon</home_region><device_private_key>0</device_private_key>0<adp_token></adp_token><store_authentication_cookie>0</store_authentication_cookie><adp_signing_key>-----BEGIN EC PRIVATE KEY-----
0
0
0
-----END EC PRIVATE KEY-----
</adp_signing_key></response>
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{images} from SpartanHeavy
The reginfo on fw 4.1.4 K4 is in XML
Something like this: {file: reginfo}
(that file is untested; I will see if I can convince one of my K4s to register with Amazon before the deadline)
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Quote:
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HeroOfCanton — 13/04/2026: I'll be watching this thread and wishing you luck {Darthagnon}; I've been trying to register my new K4 all day and got nowhere.
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14/04/2026: @HeroOfCanton what region are you in? SpartanHeavy managed and is US region
I am UK region. I have 3-4 K4s that I can try to register. 1x is banned (eBay purchase)
A bit nervous in case it wipes userdata
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SpartanHeavy — 14/04/2026, 20:23
When registering my K4, I used my PC to trigger the OTP code for 2FA. I signed into Amazon on the PC, they sent me an OTP, and I used it on the Kindle instead of on the PC.
I registered during initial setup after a factory reset. For the password, I entered my regular password and added the OTP to the end of it.
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15/04/2026:
I haven't had any luck yet, I get the error "The Kindle cannot connect at this time"
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SpartanHeavy — 15/04/2026, 20:22
It could be a compatibility issue with your Wi-Fi. Have you tried connecting to a different Wi-Fi network?
If you can create a hotspot with your phone, try that
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Quote:
16/04/2026:
I tried with Win10 hotspot (2.4GHz, Intel AC8265) , but that didn't work. I will try with regular wifi. EDIT: I tried with regular wifi, had the same problem. Maybe this Kindle is blacklisted, too. They're all second hand ones from eBay, car boot sales, which I hacked and never took online. Google loads via the web browser, but registration throws up the error Your Kindle is unable to connect at this time. Please make sure you are within wireless range and try again. If the problem persists, restart your Kindle from the menu in Settings and try again.
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16/04/2026:
I tried putting a reginfo with generic blank/fake data in the XML fields (similar to the one I posted above) but it did not fakeregister the Kindle. I think it needs some crypto keys which are unknown or device specific. I did locate client.p12 and client.pem in /var/local/java/prefs/certs/ but no idea if or how they're related to the reginfo file
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Code:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><response><user_device_name>My Private Kindle 4</user_device_name><given_name>Joe</given_name><name>Joe Bloggs</name><alias>JB</alias><account_pool>Amazon</account_pool><kindle_email_address>joe.bloggs@kindle.com</kindle_email_address><user_directed_id>1234567890</user_directed_id><device_type>Kindle 4</device_type><home_region>USAmazon</home_region><device_private_key>0</device_private_key>0<adp_token></adp_token><store_authentication_cookie>0</store_authentication_cookie><adp_signing_key>-----BEGIN EC PRIVATE KEY-----
0
0
0
-----END EC PRIVATE KEY-----
</adp_signing_key></response>
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Cont'd: Blanks and zeros and fake data, and no idea what the keys, tokens, auth cookies etc. should be
That's what a Kindle 4 reginfo file looks like; for later firmwares, reginfo looks like:
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Code:
#Sun Jan 20 17:53:23 GMT-00:05 2019
givenName=Joe
deviceName=Joe's Kindle
userName=Joe Bloggs
deviceEmailAddress=joe_a1b2c3@kindle.com
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Cont'd: Need help from someone with more experience and knowledge about these things
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