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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 ChildPad&7d G3 Android 4.0.4 + CWM Recovery custom firmware
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exelletor

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2012/09/24 - 20:50
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The Arnova ChildPad is an children-optimised Android 4.0 ICS Android tablet with great features for an affordable price. It comes with Android 4.0.3 Ice Cream Sandwich, featuring a Rockchip RK2918 CPU, 1 Gb of RAM and is available with capacitive or resistive screens. In addition to our first custom firmware which brings root and Google Play on the device, we are happy to provide another one to provide full Android 4.0.4 experience, CWM Touch recovery and many other options. Though we developed this firmware with the ChildPad in mind, it should also work on Arnova 7d G3.

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Changes over our previous kasty custom firmware:

  • Android 4.0.4 built from Evolution 2.3 for Cube U9GT2
  • CWM Touch Recovery built from Prestigio 5080B
  • Update fw files to 20120608 Official FW version (capacitive only)
  • Allow mass storage
  • Stability improvements
  • Camera enhacements
  • Smoother screen rotation
  • Change browser behaviour(keeps processes going on, for ex. playing music)
  • Google Ears included
  • Face Unlock
  • Apex Launcher
  • Fix disappearing icons after performing a reboot
  • Fix Google+ and Google Talk issues
  • Fix Google Calendar Sync issue

This firmware also features full Google Play support and read/write access to /system partition.

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Arnova ChildPad custom firmware install procedure

Before starting, please make sure you backup all your existing apps, data and files that are on your tablet as they will be erased during the flash process. Also make sure your device is connected to the power.

Step 1. Download

AN7DG3-CP20120919EV2.3 | ONLY FOR CAPACITIVE SCREEN MODEL |

This firmware is specific to the Arnova ChildPad and 7d G3 capacitive screen models and should not be installed on other devices.

WE WILL NOT BE HELD RESPONSIBLE FOR ANY DAMAGE TO YOUR DEVICE.

THIS FIRMWARE UPDATE IS USED AT YOUR OWN RISK.

WE RECOMMEND TO FLASH THIS FIRMWARE ONLY IF YOU ARE ABLE TO RESCUE A BRICKED DEVICE USING ROCKCHIP FLASHING TOOLS.

Download the file from above and extract the custom firmware files on your computer hard drive.

Step 2. Installing the driver

Please follow the Rockchip Flashing tool procedure: that will explain how to download Rockchip flashing tool, put your device into flashing mode and install the driver. Because we are using a different setup here(otherwise we would have to build six different firmwares), you only need to follow steps 1-3 from that tutorial.

Step 3. Installation

Run EvolutionRKTool program from the first archive. Check that your tablet is connected by usb and is put in the recovery mode. RKAndroidTool should say "Found RKAndroid Loader Rock Usb". There are three parameter files in the Loader folder. Select one of the three, corresponding to the size of the Apps partition you want to have(parameter for 512MB, parameter-1G for 1GB and parameter-15G for 1.5GB). Now tick the other boxes as shown on the picture below.

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Now, click on EraseIDB. After the proces is finished(should take around 15 seconds), click on Run. When the CWM Recovery will show up on the device, choose Reboot System now. After a couple of minutes, the Start-up Wizard should appear. Please note that the wizard itself may be a little bit slower than the stock one from Arnova.

Tips&Tricks

Improving screen density. 

The procedure is explained on our forum. After applying, don't clear cache and/or data of Google Play, as not all the apps will be visible then.

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Kaspersky Mobile Parental Control.

With this custom firmware, we decided not to install the Mobile Parental Filter app from Profil Technology. If you still want one, we recommend to use the one from Kaspersky, as it is free and has more options than the stock one on the ChildPad.

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Setting up parental filtering on Google Play

This custom firmware will open your ChildPad thousands of applications in Google Play, but you may want to enable filtering, so your little ones do not see applications they are not supposed to see.

To achieve this, start Google Play Store, go to the upper right corner menu, click on it, select Settings
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Scroll to “User Controls” section, click on Content filtering item
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Make sure that only “Everyone” rating is checked.
According to Google, “Everyone” setting should not contain objectionable material, where “Low maturity” setting may include mild cartoon or fantasy violence or other potentially offensive content.
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Let us know how it works for you in our Arnova ChildPad forum.

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mitsos88spyr
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2012/09/26 - 18:39
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Did this firmware fixed the problem of google maps ? because in the last one i couldn't get tracked with the wifi conection ...

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exelletor

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2012/09/27 - 19:13
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Yes, it is fixed. ;)

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jozomali
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2012/09/28 - 23:20
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Hello.

 

I'm having a problem installing various large games... When installing using adb, I get the error "INSTALL_FAILED_CONTAINER_ERROR", and the logcat shows:

E/PackageHelper( 1008): Failed to create secure container smdl2tmp1
D/VoldCmdListener( 66): asec create smdl2tmp1 27 fat {} 10038
E/Vold ( 66): Error creating imagefile (Read-only file system)
E/Vold ( 66): ASEC image file creation failed (Read-only file system)
W/Vold ( 66): Returning OperationFailed - no handler for errno 30
E/DefContainer( 1008): Failed to create container smdl2tmp1

 

Reading here: http://androidandsandu.blogspot.de/2012/04/how-to-resolve-installfailedcontainerer.html

looks like it happens when packages have external storage set as preferred for installation, and the kernel is missing some options when it was compiled.

Anyone experienced similar problems? For example, newly released 'Bad piggies' has this problem.


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exelletor

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2012/09/28 - 23:29
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Actually, this firmware uses the stock kernel, I didn't recompile it... Did you have those issues on the stock firmware too? And what if you install them by just copying them to the internal memomry of the tablet?

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jozomali
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2012/09/28 - 23:42
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exelletor said
Actually, this firmware uses the stock kernel, I didn't recompile it... Did you have those issues on the stock firmware too? And what if you install them by just copying them to the internal memomry of the tablet?

I don't know if it's the same on stock, as I installed the ROM right after getting the pad out of the box :)

 

I can do 'adb push whatever.apk /data/app', but it won't show in launcher. If I try to install it from there, I get the same error in the log files.

 

Cheers.

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exelletor

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2012/09/29 - 00:04
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I think, at this moment, the only option would be just to copy the apks to your userdata (with adb adb push whatever.apk /sdcard/) and install it from there... I will see when I can learn how to compile a new kernel and possibly fix this for you. Smile

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jozomali
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2012/09/29 - 00:07
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exelletor said
I think, at this moment, the only option would be just to copy the apks to your userdata (with adb adb push whatever.apk /sdcard/) and install it from there... I will see when I can learn how to compile a new kernel and possibly fix this for you. Smile

I tried that, and still get the same error. Even when installing directly from Play. Could you try installing Bad piggies, for example?

 

I will try installing the JellyBean test rom, will let you know if the same problem appears there.

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exelletor

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2012/09/29 - 00:12
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My ChildPad is switching ten ROMs per day and I am currently playing with two of the JellyBean ones, I will get the 404 one back in an hour on it and will let you know how it goes. Smile

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jozomali
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2012/09/29 - 00:16
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jozomali said

 

I will try installing the JellyBean test rom, will let you know if the same problem appears there.

So, installations work fine on JellyBean. Looks like there is definitely a kernel issue with the rom.

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exelletor

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2012/09/29 - 00:48
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I just reinstalled the 4.0.4 ROM and (eventually) I got the Piggs to install, but it is after 12PM here already, so that's something for tomorrow/coming days. :) I will check what goes wrong...

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exelletor

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2012/09/29 - 12:59
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Just in case you will want to rinstall this ROM(instead of the JellyBean one):

I unmounted the internal storage(settings -> storage), installed the green piggs and mounted the storage again. Now all the other angry birds also install fine, so that's something you could also try.
I also had the sdcard inserted, don't know whether it has something to do with it or not, I will spend some time on neomode ROM now. Smile

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b.breum

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2012/09/29 - 21:25
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I have had no problems installing large games with previous rom and dont see the improvements in this relase as critical for me to update since its working great. 

But when you come out with 4.1 ;)

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exelletor

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2012/09/30 - 00:09
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b.breum said
I have had no problems installing large games with previous rom and dont see the improvements in this relase as critical for me to update since its working great. 

But when you come out with 4.1 ;)

Forgot to mention - there is also an option to move apps to sdcard and the standby time is improved. Smile For the large apps, there is a workaround above which (I think) needs to be applied only once. For now, I can't tell when the 4.1 will be out... ;)

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b.breum

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2012/09/30 - 11:11
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okay that was 2 news i've missed.

the standbytime would be great to have improved and also apps to sd card, cause im using around 800MB of the 1GB ;)  

Still having messed a lot with my phone i also know that its a good thing to leave it if its working as you'd like it to work hehe :)

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