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Old 02-21-2013, 07:43 AM   #1
sha80
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Kindle 4 NT gets frozen in a sleep mode

Hello!
I have a Kindle 4 NT for more than a year and it was just perfect, but once I hadn't use it for a long time and when I got it there was a screen with a message to charge it. So I did. Then I turned it on and everything was fine until it went to a sleep mode with a screensaver. I pressed the 'ON' button but nothing happened. I followed the instruction on the amazon page: http://www.amazon.com/gp/help/custom...829000#restart. My Kindle rebooted and everything was OK until it went to sleep again. I pressed the 'ON' button but the Kindle didn't wake up. I also noticed that there was no green light at all, only yellow one when I charge the Kindle with the adapter or when I plug it into my computer.
When I plug the Kindle into a computer it doesn't recognize the Kindle unless I hold the button for 20 seconds and it gets rebooted. Then it is recognized as a USB drive.
I tried to reset the Kindle to the factory settings but it didn't change anything, the problem still remains. Then I reflashed the main and diagnostic partitions, it didn't help. Then I reflashed partitions and the main kernel, and it still gets frozen in a sleep mode.
Everything else works as usual, I can read books, use Wi-Fi, and so on but if I don't use it for 10 minutes it goes to a sleep mode and gets frozen and I have to reboot it which takes a long time.
Could you please advise me how I can fix this problem?
Regards,
Alexander
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Old 02-21-2013, 11:59 AM   #2
HarryT
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Try doing a Factory Reset and see if that helps.

EDIT: Never mind, I see you've already tried that. No idea, in that case - sorry. What do Kindle Customer Service say?
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Old 02-22-2013, 07:13 AM   #3
sha80
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They sent me the instructions similar to http://www.amazon.com/gp/help/custom...829000#restart.

Unfortunately my warranty has expired.
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Old 02-23-2013, 01:29 AM   #4
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You can try to reflash the firmware with Kubrick LiveCD/LiveUSB.
That might help.
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Old 02-23-2013, 07:01 AM   #5
sha80
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Thanx for advice, I'll give it a try. I am already charging my Kindle.
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Old 02-25-2013, 07:56 AM   #6
sha80
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I just used Kubrick, it didn't help.
I noticed that a reboot command freezes my Kindle and in order to continue rebooting I have to press the 'ON' button.

Maybe it's hardware (or a battery)?
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Old 02-26-2013, 07:12 AM   #7
sha80
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My Kindle goes to a sleep mode in 10 minutes. Do you think it's possible to increase this time to 7 days or more?
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Old 02-26-2013, 08:42 AM   #8
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On the home screen, type this:
Code:
;debugOn
then this:
Code:
~disableScreensaver
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