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Old 06-02-2016, 07:55 AM   #3
geekmaster
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Posts: 6,433
Karma: 10773670
Join Date: Nov 2011
Location: Multiverse 6627A
Device: K1 to PW3
Quote:
Originally Posted by n1kn0k View Post
[...] address is confirmed but attempting to mount it gets me the error:
Code:
no medium found on /dev/sdb
fdisk -l doesn't tell me anything:
Code:
no medium found on /dev/sdb
Is there anything I can try that wouldn't require me to take it apart at this point?
That is a symptom of the kindle being in "low battery" charging mode. The source code calls this "fake disk" mode (or something like that) and it shows up on a Windows computer as a 0MB hard drive.

The reason lab126/amazon uses this "fake disk" mode is so that host PC things a real USB device is attached, to prevent turning off power to that USB port (so your kindle can be charged on a PC USB port). Another reason is that the kindle was not able to turn on its SDRAM (main memory) or other internal devices due to a lack of sufficient power, so it with almost no firmware loaded and active, it can only safely trickle-charge the battery (because battery charging is a software function in the kindle, and software needs to load into SDRAM).

Beware that in this mode, the kindle may be set to draw as little as 10mA and can take more than a day to charge. I (and others) have found that after charging for a half hour or more, it can be switched to a faster charging mode by doing a hard reset (hold the power button for 30 seconds).

It is possible that you have a dead battery that will not take a charge. If so, you must commit to taking it apart at this point.

You can try swapping in a known good battery from another kindle that uses the same battery, to test this particular kindle. But that means opening the kindle, in which case you could attach to the internal serial port and SEE what messages are being displayed when you hard-reset it.

Or you could try that "kindle battery surgery" hack I posted in another thread if you do not have a spare battery to borrow for testing this device.

But a bad battery can prevent the kindle from booting at all, so yes, a battery change MIGHT be required. There are services that do that for you, or you can buy a replacement battery online, or (if adventurous) you could repair your dead battery (i.e. "kindle battery surgery").

EDIT: I just re-read the entire thread, and I see that your kindle DOES operate long enough to draw the "kindle tree" startup screen, then go to the language selection screen. Have you selected a language yet? If so, what happens next? Language selection happens after setting a device to shipping mode (and other things), and your kindle cannot go farther until you select a language. If you are stuck there, it is possible that your touchscreen is not working. I have a PW3 with a flaky touchscreen -- tapping the power button (in and out of screen saver mode multiple times) eventually gets it working again, for awhile. Try that, then select your language. I keep my "flaky touchscreen" PW3 in usbnetworking mode, so I can control it from there. However, the "fake disk" mode you described still indicates a dead battery, so like my PW3, perhaps you have a flaky touchscreen AND a dead battery (I swapped in a battery from a dead PW2 that could not even trickle-charge a good battery)...

Last edited by geekmaster; 06-02-2016 at 08:05 AM.
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