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

 Please donate to support OMA and CrewRKTablets firmware work, thank you !

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Arnova 7 G3 firmware dump (restore your device to stock)
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xzyk
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2012/08/29 - 02:06
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Hi Zinger6786, sorry to hear you're having problems with your new AN7G3.
If we ever do get a stock rom i'm willing to bet it will solve your problem since it will take the tablet back to factory defaults and set all permissions and partitions sizes correctly.
In the meantime, from your problem descriptions, it sounds as if your system partition has either truly filled up with some 'junk' or you have a permissions problem.
Since we do not have a CWM working for our tablet yet I'm not sure which way to advise to try and fix it.
I believe (cause I tried it) that Rom Manager (which you can download from the Google market) does have an option to fix permissions but I'm not certain it actually works on the tablet, although it appears to do something I'm not sure it actually does (if you know what I mean).
You should be able to use any root explorer, move to the system partition and show it's details. This will tell you how full (in MB) the file explorer thinks your system partition is.
I've just done it on mine and it shows 217MB  , but I have addded some stuff in there so yours should be a bit smaller unless it's got full of 'junk' like I explained above.
The details should also show it as being Readable but not Writable.
Each partition in the android system will be set to a specific size so if yours has got full with something that will explain why you cannot write anything into it.
If you have a permissions issue it would explain why apps (that need to be installed in the system partition) cannot install but apps that can install elsewhere (like ES File Explorer) do.

Here is the partition info of the AN7G3:

app_67@android:/ # df
Filesystem             Size   Used   Free   Blksize
/dev                   407M    44K   407M   4096
/mnt/asec              407M     0K   407M   4096
/mnt/obb               407M     0K   407M   4096
/system                251M   217M    34M   4096
/data                 1007M   161M   846M   4096
/cache                 251M     4M   247M   4096
/mnt/extsd               7G     1G     5G   4096
/mnt/sdcard              2G   882M     1G   4096
/mnt/secure/asec         2G   882M     1G   4096

app_67@android:/ #

Your /system partition should also be 251MB, but ofcourse your used/Free will probably be different, but the important thing is to make sure that you have some 'Free' space left. Basically if, from your ES Explorer, your /system partition shows xMB in size then what you have left is 251-xMB to install any apps that need to install in /system/app.  As I said other apps (that don't need to reside in /system/app) will install fine, these usually go in the ./data/app directory and as you can see from the above listing we have around 1GB of space there.

Let us know how you get on. Good Luck.

Android devices owned:
Samsung SGS2.
ZTE Blade.
ZTE Crescent.
Advent Vega.
Arnova 7G3.

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ninjaduck

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2012/08/30 - 15:15
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Hey all sorry for the delay.  Zinger, if you can access ADB, my method should set you back to stock.

 

I have now purposefully screwed with the ROMs as much as possible, and as long as I can get ADB, I can always get back to stock.  I even got the tablet confused with mount points for extsd and sdcard, and fixed it.  Even if you can't get ADB, you should still be able to flash an image in LiveSuite, which would give you ADB, and proceed from there.

 

Anyways I've been delayed a bit thanks to a nasty lightning strike that destroyed my circuit breaker panel at my house.  I should have power restored later today and will get files and instructions put online.  Sorry again for the delay.

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Zinger6786
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2012/08/30 - 16:36
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ninjaduck, thanks for the reply.  I have the SDK installed, and have downloaded the ADB drivers from a link in one of the forums on this site.  I can open a CMD prompt and type "adb devices" and my device shows.  I have also downloaded and installed Android Commander, and can cnnect to my device with it.   If you could, would you point me to or elaborate on what "my method should set you back to stock" is referring to?   Is there a link somewhere, steps listed in a thread, what am I missing?  If "my method" is referring to what you are currently working on and will have the files and instructions put on-line later today, then I apoligize for my ignorance :-)    Thanks again in advance for the assistance.

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ninjaduck

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2012/08/31 - 02:43
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Here's the details:

Like I said, method is borrowed from others with assistance from everyone involved here.  You will need a micro SD card that's at least 8GB.

My personal backups of the nand partitions are linked below; it's near-stock with Google Play, CPU Master, and extsd as sdcard mod.

 

To restore nand partitions on the G3:

Place the files at the root of a micro SD card and insert into your tablet.  Please note that steps that read "sdcard" may need to be changed to "extsd" depending on how your tablet currently mounts the card.  If file not found, change and try again.  Also, if you're restoring and this mount point changes, you may need to send an adb reboot command and pick up where you left off once it restarts.

Open adb (Win Vista/7, command prompt as administrator!) as root (adb root)

adb remount

adb shell

cat /sdcard/nanda.img > /dev/block/nanda

cat /sdcard/nandb.img > /dev/block/nandb

cat /sdcard/nandc.img > /dev/block/nandc

cat /sdcard/nandd.img > /dev/block/nandd

cat /sdcard/nande.img > /dev/block/nande

cat /sdcard/nandf.img > /dev/block/nandf

cat /sdcard/nandg.img > /dev/block/nandg

cat /sdcard/nandh.img > /dev/block/nandh

cat /sdcard/nandi.img > /dev/block/nandi

cat /sdcard/nandi1.img > /dev/block/nandi1

sync

(Ctrl-C to exit shell)

adb reboot

 

You're done.  To make your own backup, repeat the steps in reverse (cat /dev/block/nanda /sdcard/nanda.img etc.)  I have no doubt that not all of the images are necessary, but I provide all of them to be thorough.  Uncompressed it's over 6 gigs, hence each is zipped individually.

 

https://dl.dropbox.com/u/61019120/tabletfiles/nanda.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nandb.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nandc.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nandd.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nande.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nandf.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nandg.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nandh.zip

https://dl.dropbox.com/u/61019120/tabletfiles/nandi.zip

(NOTE - nandi1.img will not fit in my dropbox.  If you need it, give me your email and I will send you a Google Drive share link)

If files aren't available, they're still uploading.

I wouldn't mind if someone would mirror these files; I need my dropbox space for work.  If anyone wishes to carry the torch further, using this method and info @ http://www.freaktab.com/archive/index.php/t-912.html  you should be able to modify the AOKP/CM9 roms to work with our kernel with proper wifi reception and auto-rotate.

 

Questions/comments/reactions?

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admin

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2012/08/31 - 08:59
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Thanks for your research ninjaduck Wink

I'll download, repack and host to the files to a permanent place later today so you can free some Dropbox space; I'll PM you for the missing nandi1.img.

Since you confirm this restore method works, I'll give a shot flashing the Elvish for Hyundai A7 and restore back to Arnova 7 G3 using your files. I'll also later try to do some firmware modifications, as time permits...

Cheers.

If you like our web site, applications and firmwares, feel free to support our site. Donations are used to pay the bills for our server hosting costs, development tools and purchase new tablets to support.

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ninjaduck

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2012/08/31 - 23:02
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Link to nandi1.img (zipped, large filesize)

 

https://docs.google.com/open?id=0BwHt6JqpoqLAY3REczFyUmM2R2s

 

and admin, the thanks is to all of us, we've helped ourselves/each other since Archos apparently can't be bothered.

 

Which is really disappointing, too.... their portable-console-tablet that's upcoming has real potential, but I certainly don't think I can recommend anybody buy it!

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juanche007
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2012/09/01 - 06:02
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It did not work very large file is almost ten times larger than a standard img.

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SRH990
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2012/09/01 - 10:50
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Thanks very much for your efforts ninjaduck, I installed all the nand files apart from nandi1 and it boots up nicely as an Arnova tablet again and the accelerometer works fine. I've just got one slight issue which persists after two fresh installs, the home 'button' doesn't work - anyone any ideas as this would make it perfect.

You were right that it doesn't need all the nand images installed to boot back as a 7G3, not sure how many are required. When installing I had to use /mnt/extsd in the path for the first 4 image files, then it overwrote the file system and I had to exit, adb remount, adb shell then use the path /mnt/sdcard.

Hopefully someone can return this to a single image file for a simpler install.

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globula_neagra
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2012/09/01 - 13:19
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nandd is the system.

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ninjaduck

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2012/09/01 - 19:16
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Home button issue sounds like a messed up program default . Try going into manage apps on system settings and clear defaults for android system, launcher, etc. Or try clear data/factory reset. I agree that it seems only nanda through nandd seem necessary to restore the system.

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SRH990
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2012/09/02 - 19:19
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Factory reset did the trick, home button now works, as does pretty much everything - result!

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Zinger6786
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2012/09/03 - 21:49
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Okay, first off I'm estactic :-)   I now have my original Arnova 7 G3 truly back to "original" and "factory" defaults.  ninjaduck, I used you files and steps, and conceptually this works really well and consistent.  I saved my files first and lliterally did the restore a two dozen times.  I resotred all (9) partitons, and only some of them to test with.  However, unlike what SRH990 stated, once restored it was not a factory Arnova 7 G3.  I immediately noticed several things, Voice talking for typing was missing, AppsLib will not run, says, "not supported on this tablet", the Model number now shows as a GT-19100 instead of AN7G3, and several more.  Yes is solved my problem where my image files were corrupt, but restoring your images basically gets me your tablet, exactly as you had it.  I'm assuming you either do not have an Arnova 7G3, or you had another ROM installed?  I figured out it was my "system" partition (nandd.img) that needed to be restored to get the top Internal storage to show as 0.98GB total instead of 0.  I did a lot of reading up, and have a good idea now of what all (9) partition images are for ICS.  So how I got a "truely" factory original image?

1) Went back to the local brick and mortar store here and bought another Arnova 7 G3

2) ONLY turned it on and ONLY set the USB Debugging, absolutely NOTHING else

3) Connected to my PC (with Android SDK and adb) and saved off all (9) partitions to an 8 GB external card

4) Restored the (9) partitions to mine, and now it is EXACTLY like the new one, and back to truely factory default.

Note:  I checked all the reported Storage sizes and comapared everything I could.

5) Then without doing anything to mine, NOTHING but the following,

     a) Added my WiFi network, ran included AppsLib, downloaded and installed ArcTools 0.69, and added Google Play for 7 G3

     b) Removed my WiFi and just ran Google Play to ensure it started up (I did not configure it)

6) I then saved off the (9) partitions again, thus getting a copy that is original factory plus ONLY Goggle Play

   I did this 3 times, verified the tablet was factory each time, verified Google Play "worked" each time, and throughly tested all the features of the tablet.  At least for me, my original tablet is back to factory, and is performing speedily and very well.  I see absolutely nothing wrong with it, and I've played with it now for close to 24 hours.  I have both sets of these (9) nand partition files, that should work for anyone with an Arnova 7 G3 to get it truly either back to factory, or factory with ONLY Google Play.  I just need to find a place to store the 2 sets of 3.80GB files.  Thanks again to everyone who has helped with this, and has educated me.  I truely appreciate this web site (ArcTablet) and those members who love these products.

 

Partitions:

NANDA = BOOTLOADER
NANDB = ENVIRONMENT
NANDC = BOOT\KERNEL
NANDD = SYSTEM
NANDE = DATA
NANDF = MISC
NANDG = RECOVERY
NANDH = CACHE
NANDI = internal NAND area (usually mounted as SD card on stock ROM)

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admin

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2012/09/03 - 22:00
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Thanks for your report Zinger6786, thanks again ninjaduck for your help.

ninjaduck, I've made an archive of the 4 first nand images (nanda to nandd) so you can delete yours.

Coming from a full image (like elvish or stock) these 4 images are sufficient to restore a working device. A non working device should be flashed with Livesuite first.

 

Ninjaduck "nandd.img" system image is not fully stock as there are slight changes in the system build.prop and Google Play / Android Market is already installed, but it's rather convenient and can also be removed as the firmware is rooted.

Firmware dump archive: Arnova7G3_stock_firmware_dump.zip

Later on, I'll try to provide some batch files to ease the firmware restoration, but instructions given by ninjaduck in post #63 and confirmed by Zinger6786 (post #71) should do the job.

 

Finally, it's also worth mentioning there is also a CyanogenMod 10 (CM10) Android 4.1 Jelly Bean firmware on the way for the Arnova 7 G3, more info soon...

If you like our web site, applications and firmwares, feel free to support our site. Donations are used to pay the bills for our server hosting costs, development tools and purchase new tablets to support.

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ninjaduck

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2012/09/03 - 22:47
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Awesome news. Zinger think u could host those backups for others?

I have been attempting to flash cwm to nandg but reboot recovery won't work. Anybody been able?

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2012/09/03 - 22:59
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ninjaduck, I'm permanently hosting your files here, see my post above Wink

 

Regarding CWM, I had no problem to flash it, I used the file from XDA (attached to this post as well)

 

Copy the recovery image to your tablet storage: 

adb push cwm-6.0.1.0-touch.img /mnt/extsd

 

Then from an adb shell, write the image to nandg partition.

cat /mnt/extsd/cwm-6.0.1.0-touch.img > /dev/block/nandg; sync

 

Then you need to set the tablet to reboot in recovery, use the supplied batch boot_recovery.bat

or from an adb shell:

echo -n boot-recovery | busybox dd of=/dev/block/nandf count=1 conv=sync; sync; reboot

 

Cheers.

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