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#1 |
Junior Member
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Karma: 10
Join Date: Apr 2019
Device: Kindle Paperwhite3
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Bricked device with no serial response
Hi,
I have just bricked my device.It stucks at the man-under-the-tree picture when boot up and can not be recognized by computer.When I connected it with serial , it has no response.What should I do now? What I did before it bricks: 1.Mounted the filesystem to rw (and probably forgot to mount it back) 2.Updated the busybox(extracted from https://play.google.com/store/apps/d...ricson.busybox works normally before it bricks) 3.Installed pip using get-pip.py and installed ftpdlib 4.Changed iptables rules(-A INPUT -i wlan0 -j ACCEPT) 5.Transferred some book to it with ftpdlib 6.Put a screenshot in the linkss folder,and enabled screensavers hack 7.Reboot and BOOM Which step will probably brick the device?I would appreciate it if you can give me some advice. |
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#2 |
BLAM!
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Karma: 26047202
Join Date: Jun 2010
Location: Paris, France
Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E
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I'm going to go out on a limb here and say busybox
![]() You should *never* replace random binaries in a system that's essentially a black box, even if said binaries might appear to come from "standard"/OSS tools. (Plus, Android is NOT Linux. You can't assume Android binaries will run on Linux, and vice-versa). |
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#3 |
Going Viral
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Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
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The entire system is highly dependent on the version/build of the Busybox it ships with (which, since this is linux, expects the Linux C library to be present).
Replacing that with a version/build of Busybox built to run on the Android C library (Bionic) -- WITHOUT also supplying the expected library == three things have saved you: *) Your Kindle is dual boot and you have not (yet) trashed the alternate (Diags) system. *) The update images that Amazon posts are complete (Main) system images. (And our KindleTool will let you unpack that to get at the files you need for a fix). *) All of the "HowTo" information is already posted, multiple times, enjoy yourself learning the differences between Amazon/Linux and Google/Linux (a.k.a: Android) embedded systems. PS: First thing to do is fix your serial port interface. There are only two ways to prevent it from having an output *) Complete meltdown of the SoC *) User error in making the connections (current evidence points at this cause). Last edited by knc1; 04-13-2019 at 06:22 PM. |
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#4 | |
Junior Member
![]() Posts: 9
Karma: 10
Join Date: Apr 2019
Device: Kindle Paperwhite3
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Quote:
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#5 |
Junior Member
![]() Posts: 9
Karma: 10
Join Date: Apr 2019
Device: Kindle Paperwhite3
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Update:Problem solved.
It turned out my converter was broken.I bought a new one and managed to debrick it. ![]() For someone has a same condition to me : You can connect the RXD and TXD port of the converter and type to see if you get the same output.If not,your converter is probably broken like mine. |
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