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ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

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Arnova 7c g2 System Image for easy unbrick
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setialpha
Nürnberg, Germany

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2012/01/21 - 11:55
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The long waited system.img for your 7c g2 is finally here.

 

Download: http://www.nanolx.org/downloads/system.img

 

Flash:

- disconnect tablet from all cables

- power off tablet

- press power-on+volume to enter fastboot mode

- fastboot flash system system.img

- fastboot continue

 

Tadaa!! You're tablet should now work. See also my full-root boot.img

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ng459
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2012/01/21 - 11:57
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Thanks for this - should keep the kids happy.

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jameslewisuk
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2012/01/21 - 12:18
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Thanks very much, it worked !! 🙂 LaughLaugh

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setialpha
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2012/01/21 - 12:27
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Can you connect to WLAN and does is the SIM-Card recognized?

 

There will be an update later on, the image is not 100% complete.

(issue adb shell and try to do `ls' > command not found (...))

 

Edit:

Found the issue: links to toolbox are missing. Will fix it.


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jameslewisuk
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2012/01/21 - 13:00
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It flashed and boots fine, but.... 

 

Sim card is not recognised "please insert a sim card", when I look in "settings > about device > status" it says IMEI unknown, which I guess why it won't connect to 3g?

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setialpha
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2012/01/21 - 13:05
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That's exactly what I meant. Today evening I'll provide a fixed one. Already got SIM Card working, but not WiFi. Luckily I bought one for my mother, too, so I can compare systems.

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jameslewisuk
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2012/01/21 - 13:25
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Actually yes I am seeing both the same issues, neither wifi or 3g work.

 

  • 3g says insert sim card, and IMEI unknown in "settings > about device > status"
  • wifi says "obtaining IP address" and gets stuck at that point, then does not ever connect.  

 

Looking forward to the fixed version, thanks for your help!

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setialpha
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2012/01/21 - 18:46
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Almost finished. SIM Card/3G works. For WLAN I need to retrieve two more files and that should be it. (though this is a bit tricky).

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jameslewisuk
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2012/01/21 - 19:15
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setialpha said

Almost finished. SIM Card/3G works. For WLAN I need to retrieve two more files and that should be it. (though this is a bit tricky).

That's excellent, good work, you're fast!  I also have another fully working untouched/unmodified 7c G2 which I could use if it will be of help in any way 🙂

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setialpha
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2012/01/21 - 22:05
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Done - download image from link above. Changes:

- fix SIM Card/3G

- added applications*:

  • facebook
  • twitter
  • es file explorer
  • chat on (Sammys* free chat application)
  • app installer (can export .apk to SD)

- WiFi works, but not out-of-the-box, here's what to do:

go to: Settings > Wireless > WLAN-Settings > press menu-button (||| on device) > Advanced > Use static IP

use the following settings:

  • IP: 192.168.1.253
  • Gateway: 192.168.1.1
  • Netmask: 255.255.255.0
  • DNS: 8.8.4.4

Those settings apply to the outermost routers (unless you changed your router's settings yourself).

Now connect to WLAN again, ét voila - it will work now.

 

Have Fun!

 

* to uninstall them use "adb root" > "adb shell" > cd /system/app/ > rm WHATEVER.apk

*Sammy = Samsung

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jameslewisuk
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2012/01/21 - 22:38
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Nice one, thanks I will try this! 

Do you think there is a chance of fixing WLAN fully so DHCP works normally?

 

Maybe this willl fix it?

1. Download from the Market 'root explorer' or a similar program. I used the free 'Super Manager' with included root file explorer. You must enable the root function in Super Manager, otherwise you don't see the folders.
2. root your Galaxy Tab --> see SuperoneClick (http://forum.xda-developers.com/showthread.php?t=803682) and theunlockr.com (http://theunlockr.com/2010/11/29/how-to-root-the-samsung-galaxy-tab/)
3. Within the file explorer you should go up to root map folder (in short: "rm").
4. Then follow the instructions of Gadgeteer81. You can either delete the file or rename it:
To Fix Android going into “Obtaining IP Address” loop:
rm /data/misc/dhcp/dhcp_list

 

*Edit, no good that file doesn't seem to exist??

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setialpha
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2012/01/21 - 23:37
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No. I don't know what's wrong with DHCP. I have to do this:

 

enable static IP

connect WLAN

=> WLAN connection, but no outside connection

disable static IP

=> WLAN connection AND outside connection

 

There's definitively something wrong with dhcp. I'll maybe try wifi fixer app. AFAIK this is a pretty common issue we have here. Maybe i'll get it fixed, once Arnova shipps a full update.zip.

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jameslewisuk
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2012/01/21 - 23:42
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I fixed WLAN DHCP! 🙂

 

I used root explorer to set the permissions to 0755 for the folder and all files in

/system/etc/dhcpcd

 

Not sure which file(s) had wrong permissions but it's working on my device now.

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setialpha
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2012/01/21 - 23:47
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I almost thought it's something like that, because when you dump via ADB all permissions get lost.

I fixed many of them and created lots of symbolic links... thanks for finding it out. I'll create a new image now and will upload tomorrow (it's now 11:55 PM here).

 

Edit:

/system/etc/dhcpd/dhcpd-run-hooks was the file that had wrong permissions.

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finless
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2012/01/22 - 00:03
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That was a lesson I learned early on.  If you open folders and touch files in windows the permissions get jacked up and so does the owner!!!  What I do is do all my edits in windows then I put all the files in Ubuntu and do a chown and chmod to all of them.

 

Bob

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