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Repair Issues with Your Nikon D750 Companion App

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Support.com Tech Pro Team
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Your Nikon D750 camera is an amazing camera platform which provides excellent, reliable shots of incredible quality.

The WirelessMobileUtility software extends the capabilities of your camera, allowing you the freedom to move away from the camera itself, but still line up, take the shot, and adjust on-the-fly, as well as reviewing the stills and movies you've taken recently, to be sure you've got the images you need with the ease of the touch-screen interface of your phone or tablet.

This guide will walk you through the basic troubleshooting steps to get Nikon WirelessMobileUtility working again with your Nikon D750 Camera.
Wireless mobile utility icon.

? What kind of smartphone or tablet are you using?

  1. Android
  2. iOS

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Your Nikon D750 camera is an amazing camera platform which provides excellent, reliable shots of incredible quality.

The WirelessMobileUtility software extends the capabilities of your camera, allowing you the freedom to move away from the camera itself, but still line up, take the shot, and adjust on-the-fly, as well as reviewing the stills and movies you've taken recently, to be sure you've got the images you need with the ease of the touch-screen interface of your phone or tablet.

This guide will walk you through the basic troubleshooting steps to get Nikon WirelessMobileUtility working again with your Nikon D750 Camera.
Wireless mobile utility icon.

  1. Hold down the power button on your Android device.

    Depending on the manufacturer and model of Android device you have, the location of the power button will vary.

  2. A prompt will appear on-screen. Select Restart.
    Power prompt with Restart highlighted.
If the menu does not pop up, continue to hold the power button, and your Android device will shut off.
  • If you had to shut down your Android device, wait 30 seconds before turning your device back on.
  1. Turn off the camera.
    Top of camera with on off switch highlighted.
  2. Wait 10 seconds.
  3. Turn the camera back on.
  1. Swipe down on your screen (or up, if using a tablet) to access the menu.
  2. Hold down on the Bluetooth icon to bring up Bluetooth options.
    Android pull down screen with Bluetooth icon highlighted. Screenshot.
  3. Ensure the Bluetooth switch is set to ON.
    Android pull down screen with Bluetooth toggle highlighted. Screenshot.

This app requires location services to be enabled on your device to function properly.

  1. Open Settings on your phone or tablet.
    Android Settings.
  2. Scroll down, and select Location.
    Settings with Location highlighted.
  3. Make sure Location services are turned On at the top.
    Location settings with the on off switch highlighted.
  1. Launch WirelessMobileUtility on your device.
    Wireless mobile utility icon.

    Try taking a photo, or browsing the photos on your camera.

  1. Open Settings on your phone or tablet.
    Android Settings.
  2. Scroll to the bottom, and select About.
    Settings with About highlighted.
  3. Select System update.
    Status with System update highlighted.
  4. You'll see if there's any updates available, as well as when your device last checked for updates. If you wish, you can choose Check for update to make sure.
    Updates with Check for update highlighted.
  5. If an update is available, you can download and install it here.

    Do not turn off your phone during an update, it can result in serious problems that would require a specially-qualified technician to fix.

  1. Launch WirelessMobileUtility on your device.
    Wireless mobile utility icon.

    Try taking a photo, or browsing the photos on your camera.

  1. Press and hold the WirelessMobileUtility icon till a menu opens up.
    wmu icon highlighted.
  2. Select Uninstall.
    wmu icon menu with Uninstall highlighted.
  3. Select OK.
    Uninstall dialog with OK highlighted.
  1. Launch the Play Store on your smartphone.
    Google Play Store.
  2. Select the search bar at the top.
    Google Play Store with Search bar highlighted.
  3. Type in "WirelessMobileUtility", then select WirelessMobileUtility from the list.
    Searching for WirelessMobileUtility.
  4. Select Install.
    WirelessMobileUtility Google Play Store page with Install highlighted.
  5. This app requires extra permissions, listed here. Select Accept.
    Extra permissions prompt with Accept highlighted.
  6. Select Open to open the app now, if you wish.
    WirelessMobileUtility installed with Open highlighted.

We will return to the app in a moment, our next step is to enable pairing mode on your camera.

  1. Press the Menu button.
    Camera with menu button highlighted.
  2. Select Setup.
    Menu with setup highlighted.
  3. Scroll down and select Wi-Fi.
    Setup with Wi-Fi highlighted.
  4. Select Enable.
    Wi-Fi with enable highlighted.
  5. Select Network settings.
    Wi-Fi with network settings highlighted.
  6. Select View SSID.
    Network settings with View SSID highlighted.

Make note of the SSID listed here; you'll need it for the phone in just a moment.

  1. Launch the Wireless Mobile Utility app on your device.
    WirelesMobileUtility.
  2. Carefully read the licence agreement. When you are ready, select Yes at the bottom.
    Licence Agreement with Yes highlighted.
  3. Select the connection icon in the top-left corner.
    Main screen with connection icon highlighted.
  4. If necessary, turn on Wi-Fi at the top. Look through the list, and select the network name displayed on your camera.
    Wi-Fi connection screen with on off switch highlighted.
  5. Return to the Wireless Mobile Utility app once connected.
  1. Launch WirelessMobileUtility on your device.
    Wireless mobile utility icon.

    Try taking a photo, or browsing the photos on your camera.

Powering off an iPhone.

  1. Hold down the lock/power button.
  2. Slide to power off when prompted.
  3. Wait until the phone is off.
  4. Hold down the lock/power button until you see the Apple logo.
  1. Turn off the camera.
    Top of camera with on off switch highlighted.
  2. Wait 10 seconds.
  3. Turn the camera back on.
  1. Open Settings on your phone or tablet.
    Settings icon.
  2. Then tap Bluetooth.
    iOS settings with Bluetooth selected.
  3. Make sure Bluetooth is set to On.
    Bluetooth settings with Bluetooth switch in ON position.

This app requires location services to be enabled on your device to function properly.

  1. Open Settings on your phone or tablet.
    iOS Settings.
  2. Select Privacy.
    Settings with Privacy highlighted.
  3. Select Location Services.
    Privacy settings with Location Services highlighted.
  4. Make sure Location Services is turned On at the top. Look through the list of programs below, and make sure Cam Remote has "While Using" or "Always" selected.
    Location services with the on off switch highlighted.
  1. Launch WirelessMobileUtility on your device.
    Wireless mobile utility icon.

    Try taking a photo, or browsing the photos on your camera.

  1. Connect your phone or tablet to power to charge.
  2. Make sure you are connected to Wi-Fi.
  3. Open Settings on your phone or tablet.
    iOS Settings.
  4. Select General.
    Settings with General highlighted.
  5. Select Software Update.
    General Settings with Software Update highlighted.
  6. If an update is available, it will be displayed here.
    • If no update is available, it will show that here.
      Software Update with no update available.
    • If an update is available, it will show here.
      iOS devices with updates available.
      • Select Download and Update to begin the update process.
      • If prompted, enter your passcode.
  1. Launch WirelessMobileUtility on your device.
    Wireless mobile utility icon.

    Try taking a photo, or browsing the photos on your camera.

  1. Press and hold the WirelessMobileUtility icon till the icons start vibrating.
    WMU icon highlighted.
  2. Select the delete X in the top left corner of the WirelessMobileUtility icon.
    Delete icon highlighted.
  3. Select Delete.
    Delete WMU dialog with Delete highlighted.
  1. Open the App Store.
    Apple App Store.
  2. Select Search in the bottom right corner.
    App Store Search Button.
  3. Type in "WirelessMobileUtility", then select Search.
    search for WirelessMobileUtility
  4. Select Get for Wireless Mobile Utility.
    WirelessMobileUtility with Get button highlighted
  5. Select Open to open the app now, if you wish.
    WirelessMobileUtility with Open highlighted

We will return to the app in a moment, our next step is to enable pairing mode on your camera.