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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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ARCHOS 80 Cobalt rooted custom firmware with 2Gb storage for apps
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globula_neagra
Birmingham

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Firmware Guru
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2013/01/02 - 19:52
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The ARCHOS Cobalt is one of the most affordable devices from the market at this moment featuring a Rockchip 3066 Dual Core CPU at 1.6 GHz, 1Gb RAM, 8" capacitive screen, dual camera 0.3/2 Megapixels makes this tablet a serious option when you consider buy an Android device. We have built a custom firmware based on the stock firmware (dated 2012.10.12) providing root with read-write access to /system partition.

ARCHOS_80_CobaltImage Enlarger

Archos Cobalt custom firmware features:
Full root support with writable /system partition
Root access is controlled thru SuperSU.apk v0.95 (free version), by XDA developer Chainfire

Screenshot_2013-01-01-21-55-41Image Enlarger

Archos Cobalt root firmware install procedure

Please be aware that all the existing apps and data will be erased in the flashing procedure, if you have something to backup, this is the moment.

Step 1. Download and unpack the firmware

Custom ARCHOS 80 Cobalt firmware download


kasty-cobalt80-40-045-2G.zip

This firmware is specific to the ARCHOS 80 Cobalt model 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.

Step 2. Download and run Rockchip Flashing tool

Download and unpack Rockchip tools and run the application.

Step 3. Get your tablet in flashing mode

There are 2 ways to get in the flashing mode:
A) Using the Hard Keys
-Shut down your tablet and disconnect if from the pc.
-Press the volume key - (the one that lowers the volume)
-Insert the usb cable in the tablet while keeping pressed the volume button -
-Release the volume key

B) Using ADB
-Install android sdk
-Enable usb debugging
-Issue in adb "adb reboot bootloader"
You may want to refer to our article about ADB installation.

Install the RK30 drivers from the Rockchip tools folder

Step 4. Installing the firmware

-Select the firmware image (update.img) with Rockchip Tool
-Select RESTORE
-Wait till your tablet is flashed

Step 5. ENJOY root on your ARCHOS 80 Cobalt :)

Thanks to Admin for making this possible.

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JohnLuke92
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2013/01/02 - 23:24
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Hi

I want to root my 80 cobalt but i want to find out if i would brick mydevice and whats the risks 

Kind regards

 

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globula_neagra
Birmingham

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2013/01/02 - 23:37
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The rockchip based devices are very hard to brick, even if you fail to flash the firmware, the device can be recovered using the above posted method.
The risks should be zero if every step is done corectly.

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JohnLuke92
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2013/01/02 - 23:47
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Thanks for the reply


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pete123
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2013/01/05 - 12:57
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Thanks for this it worked and very easy to do

 

only problem I have is that I only have 4GB now instead of 8gb of room any idea how to fix this

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globula_neagra
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2013/01/05 - 16:10
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2Gb are used by the tablet it self for the /boot/system/recovery/backup/misc
2Gb are now dedicated to the apps.
You should have now 4Gb and something left for storage.
All the tablets/phones use this system.
Eg: My phone has 32 Gb internal, but only 25 is available for me, the rest is used by the phone.

The stock tablet comes with 6Gb and something.
You should be able tough to use an sd card to expand the storage, i tried one of 16Gb and works fine.

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JohnLuke92
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2013/01/06 - 15:40
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hi guys ive rooted this tablet but got problems with the tablet after reflashing the tablet so i plan to restore the tablet to stock so could someone post the stock firmware ?

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JohnLuke92
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2013/01/06 - 15:42
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the problem i have is that the tablet just shuts down for no reason then when you go to turn it back on it takes forever to turn back on

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pete123
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2013/01/06 - 21:44
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might be worth flashing it again as i did 2 of mine and they work fine and thanks globula_neagra for your reply

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JohnLuke92
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2013/01/07 - 20:25
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hi thanks for your reply but i still have this problem where the tablet shuts it self down after so long

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alexandreminem
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2015/12/11 - 03:40
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Hi there, sorry if I revive an old topic, i tried to follow the instructions.

At step 3 ((flashing mode), my tablet reboot after the adb reboot bootloader.

But at the reboot, the tablet goes black. I have to push the power button for 10 sec to reboot it. Any ideas to help me please? 

Thx!

Note : if you know another rom that can go to cobalt 80 (with 2go app storage), please tell me.

 

Thx again!

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