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Old 05-21-2019, 03:51 PM   #31
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Quote:
Originally Posted by eddie.t.h View Post
Unfortunately, the debug file does not contain anything about registration. Maybe too much time has passed. In the location /var/local/java/prefs/certs I have two files: client.p12 client.pem
client.pem looks like a normal ssh key but from what I see it contains the device serial number, motherboard number, etc.
client.p12 is totally unreadable.
Use OpenSSL to convert to human readable text.
OpenSSL is already installed on Kindles (their communications apps use it).

If not an OpenSSL command line expert, ask your favorite search engine how the command is formatted.
(I have to look it up every time myself.)
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Old 05-21-2019, 03:53 PM   #32
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Quote:
Originally Posted by eddie.t.h View Post
Unfortunately, the debug file does not contain anything about registration. Maybe too much time has passed. In the location /var/local/java/prefs/certs I have two files: client.p12 client.pem
client.pem looks like a normal ssh key but from what I see it contains the device serial number, motherboard number, etc.
client.p12 is totally unreadable.
Thanks, Eddie! I also dive-in into my Kindle DX. I can confirmed that /var/local/java/prefs/certs is now consist "client.p12". This seemed to be the `private' certificate of the Kindle. When it runs in my Windows PC, "client.p12" trigger a window that I never saw before. It looks like a wizard to create a certificate. So yes, Amazon firmware 2.5.8 has at least one bug. It delete the `private key' from the device if it is factory reset.

About the `private' and `general' certificate, @knc1 you are right! On creating an image backup, I have tested Yifanlu's tool works for Kindle DX. I will make an image backup. Just in case days like these happen again.
Last edited by DeKuns; 05-21-2019 at 03:55 PM.
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Old 05-21-2019, 04:29 PM   #33
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Quote:
Originally Posted by knc1 View Post
Use OpenSSL to convert to human readable text.
OpenSSL is already installed on Kindles (their communications apps use it).

If not an OpenSSL command line expert, ask your favorite search engine how the command is formatted.
(I have to look it up every time myself.)
When I try to do something with this file, it asks me for a password. This is not a password to my account, so what is the correct one?
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Old 05-22-2019, 06:00 AM   #34
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Quote:
Originally Posted by eddie.t.h View Post
When I try to do something with this file, it asks me for a password. This is not a password to my account, so what is the correct one?
I am afraid only Amazon that know that. Because my DXG just got its remedy of registration from Amazon, the debug file is fresh. I can see something in my debug file but I think let it be Amazon's secret.
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Old 05-22-2019, 01:42 PM   #35
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Amazon closed the registration of Gen 1-2 again per today. I can confirm with my neighbour K2. It just missed the time window. Oh, Amazon!

Edit: I am too fast. The registration is still work but first the device should be registered at Amazon end. This can be done via chat.
Last edited by DeKuns; 05-22-2019 at 02:37 PM.
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