ad hoc networks with Lifetab P9516 rooted

YLG80 · 2012-09-16T10:25:03+0200

Here is the procedure to patch your rooted P9516 for ad hoc networks.
Sorry for the english text.
It would be great if somebody could translate this procedure in German. :winki:

YLG80 · 2012-09-16T10:35:01+0200

Lifetab P9516 patch for ad hoc networks.

If you want to use your tablet with for example an iPhone in tethering mode (MyWi),
you need a patched version of the wpa_supplicant file in your tablet.
The original supplicant filters out the ad hoc networks

!

Here is the procedure :
(you are supposed to have a rooted tablet and know how to use adb)

Decompress wpa_supplicant_adhoc_ICS.zip in your adb directory:

www.avi-plus.com/download/wpa_supplicant_adhoc_ICS.zip

File Name: wpa_supplicant_adhoc_ICS.zip
File Size: 264 KB

You get a file named wpa_supplicant_adhoc_ICS (471 Kb) in your adb directory.

Under windows, enter in cmd mode and cd to the adb directory, for exemple cd \adb

Enter:

Code:

adb push wpa_supplicant_adhoc_ICS [COLOR=#339933]/[/COLOR]sdcard[COLOR=#339933]/[/COLOR]wpa_supplicant

The file is copied in the sdcard and renamed as wpa_supplicant.

Enter the following command get into androïd shell mode:

Under Windows

Code:

    adb shell

Under Linux:

Code:

  adb[COLOR=#339933]-[/COLOR]linux shell

Under Mac:

Code:

  adb[COLOR=#339933]-[/COLOR]mac shell

Once in shell mode your prompt should be a $ sign
Enter :

Code:

su

The prompt becomes # (root access).

Enter :

Code:

mount [COLOR=#339933]-[/COLOR]o rw[COLOR=#339933],[/COLOR]remount [COLOR=#339933]-[/COLOR]t yaffs2 [COLOR=#339933]/[/COLOR]dev[COLOR=#339933]/[/COLOR]block[COLOR=#339933]/[/COLOR]mtdblock3 [COLOR=#339933]/[/COLOR][COLOR=#990000]system[/COLOR]
dd [COLOR=#B1B100]if[/COLOR][COLOR=#339933]=/[/COLOR][COLOR=#990000]system[/COLOR][COLOR=#339933]/[/COLOR]bin[COLOR=#339933]/[/COLOR]wpa_supplicant of[COLOR=#339933]=/[/COLOR]sdcard[COLOR=#339933]/[/COLOR]wpa_supplicant[COLOR=#339933].[/COLOR]original

This will save your original wpa_supplicant file version into your internal SDcard.
We will then copy the ad hoc patched version into the /system/bin directory.

Code:

dd [COLOR=#B1B100]if[/COLOR][COLOR=#339933]=/[/COLOR]sdcard[COLOR=#339933]/[/COLOR]wpa_supplicant_adhoc_ICS of[COLOR=#339933]=/[/COLOR][COLOR=#990000]system[/COLOR][COLOR=#339933]/[/COLOR]bin[COLOR=#339933]/[/COLOR]wpa_supplicant

This will overwrite the original file with the new one..
We have to make sure that the access rights are correct :

Code:

[COLOR=#990000]chmod[/COLOR] [COLOR=#CC66CC]755[/COLOR] [COLOR=#339933]/[/COLOR][COLOR=#990000]system[/COLOR][COLOR=#339933]/[/COLOR]bin[COLOR=#339933]/[/COLOR]wpa_supplicant  
[COLOR=#990000]chown[/COLOR] [COLOR=#990000]system[/COLOR][COLOR=#339933].[/COLOR]wifi [COLOR=#339933]/[/COLOR]data[COLOR=#339933]/[/COLOR]misc[COLOR=#339933]/[/COLOR]wifi[COLOR=#339933]/[/COLOR]wpa_supplicant[COLOR=#339933].[/COLOR]conf

Enter exit twice to get out of the shell mode .

Code:

[COLOR=#990000]exit[/COLOR]
e[COLOR=#990000]xit[/COLOR]

Reboot the tablet by entering :

Code:

adb reboot

Your are done and you should see the ad hoc networks and be able to connect to any ad hoc network. :thumbsup:

With this patched version (for ICS 4.0.4), your Wifi strength indicator should work correctly. :thumbsup:

If something wrong happens, revert to the original file by doing this :

Code:

adb shell
su
mount [COLOR=#339933]-[/COLOR]o rw[COLOR=#339933],[/COLOR]remount [COLOR=#339933]-[/COLOR]t yaffs2 [COLOR=#339933]/[/COLOR]dev[COLOR=#339933]/[/COLOR]block[COLOR=#339933]/[/COLOR]mtdblock3 [COLOR=#339933]/[/COLOR][COLOR=#990000]system[/COLOR]
dd [COLOR=#B1B100]if[/COLOR][COLOR=#339933]=/[/COLOR]sdcard[COLOR=#339933]/[/COLOR]wpa_supplicant[COLOR=#339933].[/COLOR]original of[COLOR=#339933]=/[/COLOR][COLOR=#990000]system[/COLOR][COLOR=#339933]/[/COLOR]bin[COLOR=#339933]/[/COLOR]wpa_supplicant

This will restore the original wpa_supplicant.

Code:

    [COLOR=#990000]
chmod[/COLOR] [COLOR=#CC66CC]755[/COLOR] [COLOR=#339933]/[/COLOR][COLOR=#990000]system[/COLOR][COLOR=#339933]/[/COLOR]bin[COLOR=#339933]/[/COLOR]wpa_supplicant
[COLOR=#990000]chown[/COLOR] [COLOR=#990000]system[/COLOR][COLOR=#339933].[/COLOR]wifi [COLOR=#339933]/[/COLOR]data[COLOR=#339933]/[/COLOR]misc[COLOR=#339933]/[/COLOR]wifi[COLOR=#339933]/[/COLOR]wpa_supplicant[COLOR=#339933].[/COLOR]conf
[COLOR=#990000]exit[/COLOR]

Then reboot your tablet:

Code:

adb reboot

Your original file will be restored.

BHE-Android-ICS · 2012-09-30T19:41:10+0200

Hello,

I alreay found somthing simular for the Galaxy TAB2 in 2011.
But it don't work under ICS.
I tried this new wpa_supplicat but it also not working with
Galaxy Tab2 P5100.
Please if there is an Android out there with an solution post it ?

Thank you in advance.

(My Galaxy P5100 is rooted)

BHE-Android-ICS :confused2:

BinaryMax · 2012-10-04T10:40:09+0200

Hey YLG80!

Thank you very much for this great post !!!

regards

Gerald

Snowgay · 2012-10-16T13:36:34+0200

Thank you very much. But I have a problem. It takes minutes tu get a ip.
I would like to go back to normal. But I made a reset and the mod is still aktive.
With the reset i lost my original wpa supplicant.
Can anybody please upload the original one or tell me how to get the tablet to factory defoult.

Thanks

Snow

YLG80 · 2012-10-16T16:51:14+0200

Hello,
I had the same problem with the original wpa_supplicant.
A workaround is to use a fixed IP as I'm usually doing when I'm home.

Here is a link to download the original Medion wpa-supplicant from 21_23 update.
http://www.avi-plus.com/download/wpa_supplicant_original-updt_LT_P9516_ICS.zip

I really don't understand how you've lost the backup on the sdcard after a reset. :scared:

haraldba · 2014-09-08T15:39:13+0200

Hi all, I am Newcomer in LINUX and ANDROID, please forgive a potentila silly question.
When I try to copy "dd if=/sdcard/wpa_supplicant_adhoc_ICS of=/system/bin/wpa_supplicant" I always get the error "cannot open for write: Text file busy".
I switched of WLAN on my Lifetab S10334, but still have the same Problem - file is not copied.
What can I do now? THX for any enlightment ...
Best, Harry

Der ursprüngliche Beitrag von 14:17 Uhr wurde um 14:39 Uhr ergänzt:

I worked around the file copy issue: I first deleted the destintion file - then the copy did work. However: WLAN does not start anymore ...
I try to go back to the original file. Hope it will work.

Is there a specific ad-hoc enabled wpa_supplicant file around?

Best, Harry

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