1 Reply Latest reply: Jun 6, 2012 9:39 AM by whatheck
preema1418 Level 1 (0 points)


when updated i receive after download , not updated by phone

receive message "firmware file is not compatible"

please guide me


iPhone 4, iOS 5.1.1
  • whatheck Level 5 (4,085 points)

    Try deleting the IPSW files and letting iTunes re-download them.

    Mac OS X


    iPhone~/Library/iTunes/iPhone Software Updates
    iPad~/Library/iTunes/iPad Software Updates
    iPod touch~/Library/iTunes/iPod Software Updates
    Note: The tilde "~" represents your Home directory.


    Windows XP


    iPhoneC:\Documents and Settings\[username]\Application Data\Apple Computer\iTunes\iPhone Software Updates
    iPadC:\Documents and Settings\[username]\Application Data\Apple Computer\iTunes\iPad Software Updates
    iPod touchC:\Documents and Settings\[username]\Application Data\Apple Computer\iTunes\iPod Software Updates
    Note: To quickly access the Application Data folder, click Start, and then choose Run. Type %appdata% and click OK.


    Windows 7 and Vista

    iPhoneC:\Users\[username]\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates
    iPadC:\Users\[username]\AppData\Roaming\Apple Computer\iTunes\iPad Software Updates
    iPod touchC:\Users\[username]\AppData\Roaming\Apple Computer\iTunes\iPod Software Updates
    Note: To quickly access the AppData folder, click Start, and then in the search bar type %appdata% and press the Return key.


    If that doesn't do it and it isn't the exact error, maybe this is what you need to read -> 'Disk cannot be read from or written to' when syncing iPod or 'Firmware update failure' error when updating or restoring iPod