Please help me modifying update.img for RK2816

Discussion in 'Onda Tablet Forum' started by Diabolito, Dec 5, 2011.

  1. Diabolito

    Diabolito Member

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    Tablet / Device:
    Onda VX570R (RK2816)
    Hello

    (I'll probably sound like a newbie, but I am.) I want to modify the update.img for my device, a Onda VX570R with RK2816 chip.

    This update is 2.3.1 and comes from the manufacturer. The reason I want to modify it are :

    - I don't like the partitions they make. Though the device has 4GB space, they give it only 256Mo space for storing games and apps, and leave the rest as flash memory for storing files. I want to change this, and gave it 1GB for games and apps. I guess it's not just partitions and I'll need to tell the system the size somewhere in a config file.

    - Some games are installed with the update, games that I don't want and that waste the already poor games storing space, and they can't be uninstalled. So I want to delete them from the update.


    When I try to uncrampfs system.img it says "superblock magic not found". :\
    I read somewhere that it could be ext3 image instead of cramfs, si I tried to mount it in DiskInternals Linux Reader (which permit mounting ext3 image in windows) but it can't open it.

    Please help.


    Else, do you know any alternative image I could use instead on this device ? All images from the manufacturer have serious bugs anyway, and nearly no game can work because the sensor is often not detected or the screen is shifted...
     
    Last edited: Dec 7, 2011
  2. Diabolito

    Diabolito Member

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    Tablet / Device:
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    I found this in HWDEF :
    So here is where I can change the size of the partitions. I understand these are hexadecimal values, but it look nonsense... some partitions seem to end before their start, some space seem not used.... Please tell me the values I should use to just take some space from the user partition and give it to the game-storing-partition.
     

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