Noob question: difference between ROM and RUU


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  1. Zhenya13

    Zhenya13 Member This Topic's Starter

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    Hey guys,

    Just got my CDMA Desire from US Cellular, and before I start attempting to mess with it I want to learn all the basics.

    I apologize for the noob question, but after reading the forums for a while I can't figure this out.

    What is the difference between ROM and RUU?
    The way I understand it ROM is like an OS or the shell of the phone software.
    What is RUU? I always see it on the forums as being talked about as a original HTC RUU. Does this mean that RUU is simply the stock ROM made by HTC. I thought that the stock HTC ROM is Sense.

    Thanks all
     

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  2. DragosP

    DragosP Active Member

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    The custom ROM is a colection of software to run properly a electronic device, in our case the phone.
    The RUU is the acronym is ROM Update Utility, wich bringing the phone in the initial state: stock rom, stock recovery, stock hboot. And, of course, NO root. Only good for waranty.
     
  3. CarsnGadgets

    CarsnGadgets Well-Known Member

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    the ROM is basically the android operating system, sense ui, and the standard apps contained in a file that is loaded onto the phone.

    RUU as stated above is a Rom Update Utility, an executable file that checks the phone, prepares it and installs the ROM contained within it onto your handset.
     
  4. Zhenya13

    Zhenya13 Member This Topic's Starter

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    Thank you guys. This makes it much clearer now.

    So if I want to go from 2.1 to Froyo I either need to get a custom ROM or get a Froyo RUU that was built for my Desire - CDMA one?
     

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