1. RioStormHead55's Avatar
    ive downloaded a couple OS for my 8520 an my DM wont recognize it.
    anyone have any idea why this happens???
    06-13-10 07:48 PM
  2. Jared DiPane's Avatar
    Have you installed the operating systems on your computer as though they were a program of their own, and then deleted the vendor.xml files from them if they are not official releases from your carrier?
    06-13-10 07:58 PM
  3. diegonei's Avatar
    ive downloaded a couple OS for my 8520 an my DM wont recognize it.
    anyone have any idea why this happens???
    Follow these steps:

    Lecture 22: How to Install or Upgrade your BlackBerry Operating System (OS)

    Lecture 35: How to Downgrade Your BlackBerry's Operating System

    Remeber to delete vendor.xml.
    06-13-10 08:20 PM
  4. mangcool's Avatar
    Yeah, you need to install the OS just like a regular computer program. Then, delete 'vendor.xml'... After that, start AppLoader (that's the only way that works, for me)

    Posted from my CrackBerry at wapforums.crackberry.com
    06-13-10 09:17 PM
  5. RWWackostu's Avatar
    If your using DM, unplug your internet connection, then load the OS.
    06-14-10 09:29 AM
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