MobileRead Forums - View Single Post - Kindle PW2 error says Battery Invalid: -22

adonis · 06-27-2015, 06:48 PM

Well, let me describe the current situation:

My kindle seems to be bricked. It shows the following message on the kindle-screen:
https://goo.gl/photos/v1Hc9uWpX3evmtVf6

When i plug it via USB, it's not getting recognized by my computer.

So I've connected the kindle via serial (CP2102) to my Mac.
When i restart my kindle i get this log-output through serial connection:
http://pastebin.com/jJ4pRqwX

I think the problem here is this warning message:
<4>[ 6.419158] === BATTERY ID IS INVALID. STOPPING BOOT ===

I have two assumptions, either it's really something wrong with the battery, or there's just a fixable error in the software.

Then I found this tutorial here, how to unbrick a paperwhite. I hope, that I can fix my kindle with this method.
https://gist.github.com/TobiasWooldr...ca75190b9a473f

According to this tutorial I had to install fastboot for kindle on my computer:
https://github.com/TobiasWooldridge/Fastboot-Kindle
It's a modified version of the android fastboot.

When i get into u-boot and run "bist fastboot" I only get the battery-voltage messages. The same happens when I run "bist", and then "fastboot" separately.

I hope my problem is now clear enough, and I apologize for not describing it more detailed at the beginning of the thread.

06-27-2015, 06:48 PM	#8
adonis Member Posts: 11 Karma: 405744 Join Date: Jun 2015 Device: Kindle Paperwhite 2	Well, let me describe the current situation: My kindle seems to be bricked. It shows the following message on the kindle-screen: https://goo.gl/photos/v1Hc9uWpX3evmtVf6 When i plug it via USB, it's not getting recognized by my computer. So I've connected the kindle via serial (CP2102) to my Mac. When i restart my kindle i get this log-output through serial connection: http://pastebin.com/jJ4pRqwX I think the problem here is this warning message: <4>[ 6.419158] === BATTERY ID IS INVALID. STOPPING BOOT === I have two assumptions, either it's really something wrong with the battery, or there's just a fixable error in the software. Then I found this tutorial here, how to unbrick a paperwhite. I hope, that I can fix my kindle with this method. https://gist.github.com/TobiasWooldr...ca75190b9a473f According to this tutorial I had to install fastboot for kindle on my computer: https://github.com/TobiasWooldridge/Fastboot-Kindle It's a modified version of the android fastboot. When i get into u-boot and run "bist fastboot" I only get the battery-voltage messages. The same happens when I run "bist", and then "fastboot" separately. I hope my problem is now clear enough, and I apologize for not describing it more detailed at the beginning of the thread.