1. v0xel's Avatar
    Hello,

    After spending some time with 7.8, I was wondering if it is possible at all to downgrade to 7.5 through Navifirm and to keep 7.5?
    Or is the 7.8 update mandatory?

    Also does anyone know what firmware version the European 610 originally shipped with? I'm in the Netherlands if it makes any difference.
    02-04-2013 04:15 PM
  2. iyuslee's Avatar
    same question that i like to know, is it possible?
    02-07-2013 08:40 AM
  3. Tinashe Lindel Dirwai's Avatar
    so eager to knw my 610 cannot even work with the 7.8 .....it cant read the sim
    03-17-2013 09:46 AM
  4. SparkyDave's Avatar
    It is possible to downgrade it.

    You will need to:

    Download the correct firmware via navifirm
    Load it into the data package directory of NCS
    Use "open product" in the menu and "dead flash" it

    You may need to "kill" the phone first by flashing it and pulling the usb cable half way through.

    The "open product" menu is normally only used for dead phones and is dangerous to use.
    03-27-2013 11:57 PM

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