Hacks Kindle 4 NT wifi stopped working

[Tails]

Hello,

I own Kindle 4 NT for a long time and recently I decided to finally "hack" it.

Here's what I've done:
1. Jailbroken it using debug mode and usb networking
2. Copied files to run ssh server in the background of normal mode to access ssh via wifi. Everything worked like a charm.
3. Installed duokan to check it out.
4. I kept using default os, since I find it more comfortable.
5. Everything was fine, I even added custom screensaver with weather and google calendar activities refreshed by crontab when device was plugged to charger. This state of happiness lasted for 2 weeks when suddenly...

A problem appeared:
* Wifi stopped working. Kindle is not in Airplane Mode, settings tell wifi is turned on, but all I get is "No networks found".
* I can't turn on wifi in debug mode too.
* When I boot duokan wifi works just fine.

I checked system logs when using duokan and found something like this:

140621:230318 iwioctl: cmd=0x8b03 not allowed in this mode
140621:230318 wifid: I hid:loading:file=/var/local/system/hid.csv:
140621:230318 iwioctl: cmd=0x8b1d not allowed in this mode
140621:230318 iwioctl: cmd=0x8b23 not allowed in this mode
140621:230318 iwioctl: cmd=0x8b25 not allowed in this mode
140621:230318 wifid[8651]: I main:progress:logmask=FFFF0000 :starting wifid...::~:
140621:230318 wifid[8651]: E main:exception:thread=main  DEFAULT:
140621:230318 wifid[8651]: I main:progress:shutting down 1::~:
140621:170318 pmond[2281]: I def:exit:proc=wifid, exitcode=0:wifid (8651) exited
140621:170318 pmond[2281]: I def:rst:proc=wifid:Restarting wifid
140621:230318 wifid: I hid:loading:file=/var/local/system/hid.csv:
140621:230318 wifid[8655]: I main:progress:logmask=FFFF0000 :starting wifid...::~:
140621:230318 wifid[8655]: E main:exception:thread=main  DEFAULT:
140621:230318 wifid[8655]: I main:progress:shutting down 1::~:
140621:170318 pmond[2281]: I def:exit:proc=wifid, exitcode=0:wifid (8655) exited
140621:170318 pmond[2281]: I def:rst:proc=wifid:Restarting wifid
140621:230318 wifid: I hid:loading:file=/var/local/system/hid.csv:
140621:230318 wifid[8658]: I main:progress:logmask=FFFF0000 :starting wifid...::~:
140621:230318 wifid[8658]: E main:exception:thread=main  DEFAULT:
140621:230318 wifid[8658]: I main:progress:shutting down 1::~:
140621:170318 pmond[2281]: I def:exit:proc=wifid, exitcode=0:wifid (8658) exited
140621:170318 pmond[2281]: I def:rst:proc=wifid:Restarting wifid
140621:230318 wifid: I hid:loading:file=/var/local/system/hid.csv:
140621:230318 wifid[8661]: I main:progress:logmask=FFFF0000 :starting wifid...::~:
140621:230318 wifid[8661]: E main:exception:thread=main  DEFAULT:
140621:230318 wifid[8661]: I main:progress:shutting down 1::~:
140621:170318 pmond[2281]: I def:exit:proc=wifid, exitcode=0:wifid (8661) exited
140621:170318 pmond[2281]: I def:rst:proc=wifid:Restarting wifid
140621:230318 wifid: I hid:loading:file=/var/local/system/hid.csv:
140621:230318 wifid[8664]: I main:progress:logmask=FFFF0000 :starting wifid...::~:
140621:230318 wifid[8664]: E main:exception:thread=main  DEFAULT:
140621:230318 wifid[8664]: I main:progress:shutting down 1::~:
140621:170318 pmond[2281]: I def:exit:proc=wifid, exitcode=0:wifid (8664) exited
140621:170318 pmond[2281]: I def:rst:proc=wifid:Restarting wifid
140621:230318 wifid: I hid:loading:file=/var/local/system/hid.csv:
140621:230318 wifid[8667]: I main:progress:logmask=FFFF0000 :starting wifid...::~:
140621:230318 wifid[8667]: E main:exception:thread=main  DEFAULT:
140621:230318 wifid[8667]: I main:progress:shutting down 1::~:

And system keeps flooding logs with these messages. I've also noticed higher cpu usage by systemlog-ng.


What I've already tried:
* Removing duokan
* Removing all the files from /mnt/us/
* Tried to do factory reset, but it doesn't work (I cannot do factory reset, nothing happens).

I have no idea why suddenly such a thing happened. Any ideas how could I fix this?


Greetings

[NiLuJe]

Clear /var/local in diags and see what happens?

[Tails]

Thank you!

Wifi is working now and no more battery drain.

[NiLuJe]

Well, that was easy. .