Flashing a firmware on Rockchip CPU based devices: Archos HT (7 and 8) and Arnova tablets


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  1. Hi
    I am trying to update my Archos Home Tablet 7 v2 (using win 7) to ICS following your instructions. I have successfully installed Rockchip 281xDriver and RKAndroidBatchUpgrade.exe however when I try to flash the update.img file i get the message: Unpacking image failed. What am I doing wrong? Thank you

  2. Hi,,i hav a problem i hav archos 7 home tablet i upgraded to cyanogenmod-7-gingerbread 2.3..then goto calibration and then the calibration failed and now i cant use any button on the touch screen…what can i do plzzzz help me out…..and i tried to connect to the comp but it doesnt rcognized…..?????

  3. i try but my archos 7oc ereader don’t go into reset mode. I try right button + Power Button. Left button + power Button, Right and left button togheter. Still don’t working ?
    how can i do ? Please someone to help me, don’t wanna to pay someone just to do this

  4. I have a Arnova 10 GEN 1
    install this firmware Arnova 10 custom firmware with the Android Market and the root – kasty-arn10-21-02.zip

    and now will not start.

    I tried to blink and do not detect the device.
    I keep pressing reset +and + button for 15 seconds
    but not if I have to stop pushing and connect the USB or connect while pressed.

    • HAVING major trouble with this, have a archos 7, HTv2, managed to install Cmon7 perfeclty, had marekt and every on, but couldnt get most apps to work properly, and one big annoying prob was i could NOT acsess usb functions at all, wanted to put some videos on internal memory for my son to watch,

      so decided to reflash back to original, and its Now fully bricked, it charges but nothing else,
      i managed to get unit into recovery mode, loaded rockchip choose the update file, got the greeb box with 2-5 under it? pressed update and it said completed with NO errors, but wont turn on at all, just black screen,
      tried on both a WINxp and win7 machine, what the hell is going on??? any ideas please

  5. well I tried to be a rookie n flash it n then it jus restarted n it had a text saying android a very small text, n I tried resetting but tht didn’t work so I went to the rockchip tools thingy and bam all went well n then it shut off now it wont power on n neither does the pc pic up the device when u put the switch on lock n hold reset button it just wont come on I don’t know what to do, it just charges n do nothing more please I really need help!!!!

    • If you have installed Kasty on your 70B and the thing bricks, forget it, your device is FUBAR. There’s no way to restore the process. Why? Because the device is crap. It doesn’t warn you about shitty firmware, it doesn’t reset to the original one. It’s just a play toy. Get rid of it, sell it on ebay as it is and collect some of your losses.

      • I don’t see any reason to say so, the Rockchip flasher actually _does_ restore the device. The device may have some flaws, but its bootloader system let tools like Rockchip flasher restore it in almost any situation. If you have succeeded we can maybe help.
        Regarding Kasty for the 70b, it’s not clear why it breaks on some devices, it worked fine on our device and on the testers tablets.As a precaution we’ll probably remove the download until we’re clear on what the problem is.

  6. Please help me if possible…

    Used the Archos 7ob update provided on your site, but now it is stuck. I usually use Mac OS X, but also under Windows 7 (bootcamp) it recognizes that there is something, but i cannot access it.

    Installing the drivers provided in the download does not work. Where do I go wrong here?

    Thanks, any help is appreciated!

  7. Please help! I bought an Archos 70b e-reader two days ago and it stuck at the start screen while i was installing a new FW found on this site. Now i’m trying to fix it doing as this guide says and my PC doesn’t recognize the device. I have two questions. Are these the right drivers for my device? if so why doesn’t it work?

  8. driver installation work fine on my Archos 7htv² 2.1 éclair but not work with my Arnova 10 with your last 2.2 Froyo, RKAndroidBatchUpgrade is pink and i can’t downgrade firmware, i want downgrade because your last Froyo rom have problem with calibration, sometimes screen not work and i have to reset ! : /

    • ok, i found the reset mode for Archos 7HT v1: lock the tablet, then, plug in the USB cable to computer, disable anti-virus in your PC, manually install rockchip28 driver(choose amd64 for 64bit win 7), run the RKAndroidDM.exe, update the firmwere, done!

  9. I have an Archos 70b e-reader and I broke it while trying to upgrade the FW in order to be able to install Android Market…now it freezes in the welcome screen (ARCHOS…entertainment you way…) I don´t know what to do, I´m scared, I dont know how to put it in reset mode…I downloaded everything supposed to be needed to solve it but my pc (windows 7) does not even recognize my device.


      • I Had the same problem , what youhave to dois reset the tabletwith a pin as
        per user manual with it connected via usb,then you press the power on button
        and the right hand button at the same time . Windows will then recognise the
        tablet as « a unknown device  » you then go to properties and change settings
        then install driver use the 281 driver for your op system ,after it installs open the rkandroid upgrade application in the folder rk218 and the box numbered 1
        should be green if this is so click upgrade then enjoy your tablet

    • The device has two ways to connect, one as a mass storage and another as « reset mode » is what interests us.

      -The first has to go directly to connect the USB cable, and is loaded or not the android and ignite the screen. If this does not work you may have to change the USB cable, since my archos cable gave me problems.

      -The second is achieved with a bit more difficult. xD I got it from being the ereader 70b pulsating and keeping off two arrows and the power button while pushing the mouth with the previously placed usb, ending push to connect. The screen is not lit me the archos logo.

      The OS or Windows XP in my case, detected as a USB device and not the « mass storage » and then proceeded to install the driver. As 28Driver not install because it showed that 28,080 was due to rochchip I said « there was no information about the hardware » or similar providing the 281xdriver and if it worked.

      The rest of the way I did the same driver 281x, no probe with the other program.
      El dispositivo tiene dos formas de conectarse, una como almacenamiento masivo y otra como « reset mode » es la que nos interesa.

      -La primera tiene que salir directamente al conectar el cable usb, ya este cargado o no el android y encenderse la pantalla. Si no funciona este es posible que tendreis que cambiar el cable usb, ya que a mi el cable de archos me dio problemas.

      -La segunda se consigue con un poco más de dificultad. xD Yo lo consegui, desde estar el 70b ereader apagado pulsanto y manteniendo las DOS flechas y el boton de encendido, mientras con la boca empujaba el usb previamente colocado, terminándolo de empujar para que se conectara. La pantalla no se me encendio con el logo de archos.

      El SO o Windows XP en mi caso, ya detectaba un USB Device y no lo de « almacenamiento masivo » y luego procedi a instalar el driver. Como el 28Driver no lo conseguia instalar ya que es el que se debia para el 28080 rochchip me decia « no habia información sobre el hardware » o similar prove el del 281xdriver y si funciono.

      El resto lo hice por el camino del mismo controlador 281x, no probe con el otro programa.

  10. Hy !

    After installing 2.2 Froyo on Arnova 10 4G tablet a screen with calibration appeared. Thas calibration failed and now I cannot use any button on the touch screen.
    How can I force the calibration of the tablet without using the touch screen and how do I put it in reset mode…HOW ???

    Thank you!

    • If you have adb working on your computer, and adb is enabled on the tablet, you can issue the following command:
      adb shell am start -a android.intent.action.MAIN -n com.rockchip.tscalibration/.TSCalibration

      It should start the calibration program.

      • Hi,,i hav a problem i hav archos 7 home tablet i upgraded to cyanogenmod-7-gingerbread 2.3..then goto calibration and then the calibration failed and now i cant use any button on the touch screen…what can i do plzzzzzzzzzzzz help me out
        and what is adb???

  11. For people who still are having problems to return to the original firware:
    1) Connect your tablet with usb. Don’t start the mass storage.
    2) Start the program RKAndroidBatchUpgrade.exe which you find in files you have downloaded.
    3) The number 1 should color pink.
    4) Press Switch
    5) Windows will start looking for drivers but will not find any.
    6) Go to Devices and Printers in your computer
    7) Right click on ‘unknown device’ Properties -> Hardware -> Properties -> Change configuration -> Software -> Search software in maps -> Find the folder of your driver and install it.
    8) The number 1 that turned pink should now turn green

    Any problems? Just ask!


  12. Mine doesn’t ask for a driver when i first plug it in. I have to come back after it installs to try to point to the driver in the RK software. I’ve tried erasing windows & starting w/ a fresh copy w/ nothing else installed. Even after I do get the driver installed I still can’t access the drives. They show up but… Any other tips I might try. I have spare systems to use just to mess w/ this. thanks for the help.

  13. thank you !!
    with this guide i’ve been able to recover from a bootloop.
    caused by tring to get root using z4root.

    one thing should be added is in order to get to reset mode on arnova 8 you need to hold esc and power bottom together.

  14. Well! I am able to return to the original firmware now there is another problem, unfortunately, the memory is full and I can not install anything but I can not free the memory because when I connect the archos to the PC asks me to format the device Portable. What I do?

    • Simona, how did you get it to see the device. I’ve been trying for months. Tried on 5 dif systems w/ Vista, Win7, Xp pro & Win 2000.. It does the thing where it sees the drives but they can’t be accessed. When I try to tell it to use the drive w/ RK it says it does contain the software for my device. It never asks for a driver. It always grabs one first.. Any help would be great. It was a nice little device until I screwed it up..

    • Simona,
      There are comments about other persons in your situation and some pointers to solve the issue.
      Try to get the Rockchip flashing tools to work, eventually on another PC. When you get there, you’ll be able to easily flash your device and restore a working firmware.

  15. I used the installer for Arnova 10 custom Android 2.2 (Froyo) firmware with Android Market and root – kasty-arn10-22-04 , and I’ve been trying to install adobe flash 10.1 and 10.2.apk on this android update and it doesn’t work, I can’t enjoy pages with flash as youtube or facebook,,

    could you suggest me how to solve this issue?


      • hi….
        i’m using archos 7 home tablet with rk2818 chip.i tried ur flashing method and it worked but i tried it again with wrong firmware accidentally and now the device wont turn on even after i tried resetting and device no more gets detected in switched off state(i installed driver for RK2818 chip and already installed the right firmware once). i got an error message saying failure when i used wrong firmware with RKAndroidBatchUpgrade.exe

        Any suggestions or hints for this problem?

        • hold the power button down for over 10 seconds, I had a similar problem with my ployer momo2 and thought I’d done it in, but it was just locked at some point but still turned on. Or use the reset button.

          If that fails, I have no idea, as it shouldnt fail until it gets to load the os. The bios image should not be touched… as far as I am aware.

          at least using this method…

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