How to unpair a Mitsubishi MMCS NR-242 Map SD Card

Written By: Sebastian Dorr
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How to unpair a Mitsubishi MMCS NR-242 Map SD Card

Difficulty

Very easy

Steps

9

Time Required

No estimate

Introduction

Welcome to this guide on how to unpair a Map SD Card from a Mitsubishi MMCS NR-242, specifically for Versions W-11 and W-12. The MMCS (Mitsubishi Multi Communication System) is a built-in navigation and entertainment system that is commonly found in Mitsubishi vehicles. It uses an SD card to store map data, which allows drivers to navigate and find their way to their desired destination.

However, there may come a time when you need to unpair the Map SD Card from the MMCS, perhaps to update the map data, to create a backup or to use the SD card in another device. In this guide, we will take you through the steps required to unpair the Map SD Card from the MMCS NR-242.

Please note that this guide is only applicable to MMCS NR-242 versions W-11 and W-12. If you have a different version, you need a special unlocking tool.

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    • You can find the Version Number of your MMCS printed on the top right corner of the unit.

    • You need either a Version W-11 or W-12. In this case the Version Number is W-12, so we can proceed.

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    • You can download the Binary at this site.

    • Download the Binary.

    • Extract the NK.BIN file from the W12_MAP_UNLOCKER.rar archive using 7-Zip.

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    • The SD card needs to be formatted to FAT32. If it’s not already formatted to FAT32 and you don’t know how to do it, you can take a look at this guide.

    • Copy the NK.BIN file to the root directory of the SD Card.

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    • Press the OPEN-Button.

    • Press the Monitor OPEN-Button on the screen.

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    • Remove the SD Cards from both the MAP and USER-Slots.

    • Insert the new SD Card into the USER-Slot.

    • Close the display by pressing the Open-Button again.

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    • Press both the NAVI MENU and AUDIO-Buttons to reboot into unlocker mode.

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    • Open the display again by following the instructions in Step 4

    • Insert the paired SD Card into the MAP-Slot.

    • Wait 5-10 Seconds for the unpairing process to be completed before removing it again.

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    • Return the SD Cards you removed in Step 5 back to their respective Slots.

    • Close the display by pressing the Open-Button again.

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    • Press both the NAVI MENU and AUDIO-Buttons again to reboot back into standard mode.

Conclusion

Drive safe!

Author

Sebastian Dorr

Member since: 19/08/18

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