Question about Garmin nuvi 750 GPS Receiver

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Cannot propeerly operate GPS system features

I need to purchase an instructional manual for my GPS system in order to unlock its capable features. Thanks for your help.

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i would suggest calling garmin or going on to the garmin website, that way you make sure that you getting exact instruction manual for your gps unit and then you can access the extras that are offered to their customers thats on the website.


Posted on Jan 08, 2009

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  • Sibananda Jena
    Sibananda Jena Jan 08, 2009

    Getting your unlock codes:

    1. Log into your myGarmin account using the link

    2. Click on myMaps.

    3. Click on Manage Maps.

    4. Manage Maps window will have your unit(s) and its unlock code listed.

    5. Copy all unlock codes for your the device with the error message.

    6. Open the Notepad application and paste the unlock code.

    7. Save the file on the desktop as GMAPPROM.UNL and type as text document.t

    8. Close the document.

    9. Right-Click on the GMAPPROM.UNL document located on the desktop and select Copy.

    10. Plug your Garmin device to the USB port.

    11. Double-Click on My Computer located on the desktop.

    12. Double-Click on the Garmin/Nuvi drive.

    13. Right-Click on the Garmin folder and select Paste.

    14. Safely disconnect your Garmin device from the computer.

    15. You should no longer get the locked maps message.


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Tell me your system model, so that I can address you toward the right manual.

Posted on Jan 08, 2009


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I'll let you know if there is a user manual available for this mdodel.

Posted on Jan 08, 2009


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Cell Phone Firmware Flashing
Cell phone firmware flashing is the process by which a user upgrades a phone's mobile operating system or internal memory applications.

Flashing can provide a brand-new version of a mobile OS or simply provide bug fixes when phones are having specific issues.
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Upgrading an operating system, such as moving from Google Android 2.0 to Google Android 2.1, is the first function of firmware updates. Installing better-performing software is the second type of upgrade.
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Misconceptions Flashing a phone will not "unlock" your phone.
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Flashing a phone will also not turn your phone from CDMA to GSM or vice versa, since this requires hardware modifications.


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