1. BrunoShady's Avatar
    My girlfriend has a 620 from her carrier (Oi/Brazil), and in the 8.1 Developer Preview, the battery of the mobile lasts no more than 12 hours... I suspect it's the carrier firmware, because I know someone else who have the same mobile, but from another carrier (or the global firmware).

    It's possible to change with the Nokia Recovery Tool, or some other app?

    Will I get some compatibility problems about the hardware of the phone? Or the hardware is basically the same?


    ps:
    Probably from
    059R5Z1 RM-846 VAR AMERICA BR OI
    to
    059R3Q8 RM-846 VAR AMERICA BR CV
    06-03-2014 06:14 PM
  2. pankaj981's Avatar
    If you're keen to flash your firmware then yes it is possible. I'd suggest flashing an unbranded rom, preferably from India or Europe
    06-03-2014 06:40 PM

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