MobileRead Forums - Kindle4 NT prevent OTA update ?

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- - Kindle4 NT prevent OTA update ? (https://www.mobileread.com/forums/showthread.php?t=164360)

karl_k

01-07-2012 05:40 PM

Kindle4 NT prevent OTA update ?

Hi !

I got my kindle4 nt for christmas. It currently is on Firmware 4.0. I have not yet registered it with amazon.

I want to use the diagmode - root access to do a screensaver hack, so i wonder if that would still work once i register my kindle with amazon and they push a firmware update to the device ?

Is there a way to prevent firmware updates ? Should one do that ?
I presume a firmware update will remove the root-access right ?

Ceuse

01-09-2012 04:43 PM

Intresting question here since i almost got a heartatack when i saw my (gifted) old k3 jailbreak update after i rebootet it randomly.

would be much apriciated to get info how to turn of ota update für k 3, k4nt & k4t :)

Ceuse

01-12-2012 04:29 PM

bump :)

OTA Updates are scary :help:

Lorphos

01-13-2012 05:24 AM

The current firmware 4.0.1 is still easily hackable on the K4NT.

I don't think the K4NT does OTA updates anyway. I had to manually put the firmware file in the root directory and initiate the update on mine.

Ceuse

01-15-2012 01:45 PM

well my old keyboard did a ota update wich scared me so i asumed that the kindle 4 nt and kindle touch will also do ota updates, or am i totaly wrong about that? if yes why the hell did my kindle keyboard update itself :blink:

aleq	03-15-2012 07:18 PM

Any news on this subject?

idoit

03-15-2012 10:02 PM

Quote:

Originally Posted by karl_k (Post 1914647)

Did you follow this thread (it's for Touch).

aleq	03-15-2012 10:25 PM

I did but unless I'm doing something terribly wrong, I don't see /etc/upstart directory at all. I'll check the rest of /etc scripts however to see if they do implement it differently.

idoit

03-15-2012 10:29 PM

Quote:

Originally Posted by aleq (Post 2006208)

I did but unless I'm doing something terribly wrong, I don't see /etc/upstart directory at all. I'll check the rest of /etc scripts however to see if they do implement it differently.

Oh my bad! Kindles prior to K5 don't use upstart... :(
suggestion: issue this command:
find / -iname '*otaupdate*'

and play with it yourself. I don't have K4NT, otherwise I could help you.

aleq	03-15-2012 10:39 PM

This is almost exactly what I did :-) I tried

Code:

find /etc -name '*ota*'

with no luck.
I tried yours, -iname is not supported, with find

Code:

find / -name '*ota*'

I get only (I have removed items not related to update like ....annotations.gif from the list):

Code:

/mnt/rwfs/var/tmp/_otaupexec

/usr/sbin/otaup

/var/tmp/_otaupexec

Thanks for any tips even though you don't have K4NT :thumbsup:

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