Custom OS WarningSupport

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  1. TMPilot

    TMPilot New Member


    I'm completely new to Android. Finally moved from iPhone :beer:

    But I'm confused by a warning I got the other day. Being the paranoid type I thought I'd check it out.

    So I turned my phone off to concentrate on the pub, when I turned it back on later, there was some kind of message saying "Installing custom OS can harm your device..." (or something along those blurred lines). And gave an option to "Install" or "Ignore". I clicked install, and the little android alien fella showed up with "Installing...". I had no idea what it was doing so I held the standby button until it went off.

    The phone seems fine, but I'm wondering what that was and if some kind of software I don't want is on my phone. There was no mention of "Update" etc. Is there any way I can check to see if something dodgy has been installed?


  2. lotus49

    lotus49 Well-Known Member

    Don't worry, you just appear to have accidentally ended up in Download mode. This is the mechanism for installing third party ROMs from a computer. It can indeed knacker your phone if you install a dodgy ROM but what you did will be completely harmless.

    If you turn off your phone and then press Vol - and the Power button at the same time until it starts to boot, you can reproduce this.

    It's harmless (although what possessed you to select Install when you didn't know what was happening I don't know) unless you are actually connected to a computer using eg Odin, which you are hardly likely to do by accident.
    RichSz and TMPilot like this.
  3. TMPilot

    TMPilot New Member

    Ahh I see. I did reproduce it and how I managed to do that I'll never know...

    I'm curious to know what/where it was downloading from when I clicked Install though?

    Although you're right, I shouldn't have clicked Install and when sober I'm usually careful and only download trusted apps from the play store.

  4. lotus49

    lotus49 Well-Known Member

    The short answer is nothing.

    Your phone will have been expecting to see data on the USB port but since it wasn't connected to a computer, it didn't see any so it wasn't actually downloading anything, it was just ready to do so.

    When the phone is in download mode it doesn't have any access to anything that is not plugged in ie no internet access via wifi or 3G and no bluetooth.

    PS Feel free to click the like button if my post was helpful.
    Slug, TMPilot and Hadron like this.
  5. crabman

    crabman Well-Known Member

    Its not easy to get it into the recovery or download on accident, would require some real ham handing. lol Must have been a good night, be safe out there.
  6. TMPilot

    TMPilot New Member

    Thanks, you've been a great help.
  7. concussin

    concussin New Member

    Great to know how to get to this screen, i found that the volume down button is sticky on this model and find its always causing the volume to go down as well as when restarting the phone it will show up the os warning screen

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