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Troubleshooting a Bluetooth, dēzl App, or Garmin Drive App Issue with the dēzl Headset

The dēzl™ Headset 100, dēzl™ Headset 110, dēzl™ Headset 200, and dēzl™ Headset 210 use Bluetooth technology to connect with your smartphone.

An Issue With the Bluetooth Connection Between the Two can Cause any of the Following Issues:

  • Headset and phone will not find one another.

  • Headset and phone encounter problems during the pairing process.

  • The pairing process is successful, but devices do not maintain a Bluetooth connection.

  • You are unable to hear the person you are speaking with or vice versa.

  • Hands-free audio quality is below expectations.

Note: It is recommended not to be on an active phone call to troubleshoot a Bluetooth or dēzl™ App issue. While an active phone call will not prevent troubleshooting, some steps can cause the phone call to drop.

We Suggest Troubleshooting in This Order for Bluetooth, dēzl App, and Drive App Issues:

1. Phone Requirements

Ensure your Phone Meets System Requirements for the dēzl App or Garmin Drive App:

dezl App

Android phones and tablets require Android version 9.0 or later.

  • Wi-Fi and Cellular capability are required

  • The dēzl™ app will not be available in the Google Play Store if the app is incompatible with the device being used

  • Trying to install the app to an incompatible device from the Garmin website will prompt this error: "your device isn't compatible with this version"

iPhones and iPads require iOS 16.4 or later.

  • Wi-Fi and Cellular capability are required

  • Apple only includes the GPS chipset in the Wi-Fi + Cellular models

Garmin Drive App

Android phones and tablets require Android version 9.0 or later:

  • Wi-Fi and Cellular capability are required for full functionality
  • The Garmin Drive app will not be available in the Google Play Store if the app is incompatible with the device being used
  • Trying to install the app to an incompatible device from the Garmin website will prompt this error message: "Your device isn't compatible with this version"

Apple phones and tablets require iOS 16.4 or later:

  • Wi-Fi and Cellular capability are required for full functionality
  • Apple only includes the GPS chipset in the Wi-Fi + Cellular models

Verify your Phone has the Required Permissions Enabled:

See Phone Permissions Required to Use the dēzl™ App and Garmin Drive™ App for more information.

Check for Updates to the Phone’s Operating System: 

To Check for Updates on iOS:

(Note: These steps will vary depending on the phone and OS combination)

  1. Open the phone's Settings menu
  2. Touch General
  3. Touch Software Update

To Check for Updates on Android:

(Note: These steps will vary depending on the phone and OS combination)

1. Touch the Apps menu (some phones skip this step)

Red box around apps icon

2. Touch Settings or the Gear icon 

Red box around the Settings icon

3. Touch About Phone (some phones skip this step)

4. Touch Software Update or System Updates (you may need to scroll down the page)

Red box around Software update 

5. Touch Download and install or Check for system updates (some phones skip this step)

Red box around Download and install option

6. Touch Download or Yes if updates are available

7. Touch Install Now

The phone should now check for and apply any necessary system updates.

2. Software Updates

Check for Updates to the Software of the headset:

See Updating the Software on a dēzl Headset.

Check for Updates to the dēzl App or Garmin Drive App:

Search for the dēzl app or Garmin Drive app in the Google Play or App Store to check for updates and apply them, if available.

The installed version number of the dēzl App or Garmin Drive App can be found on the phone itself if the app will not launch.

To Locate the Software Version of the dēzl App or Garmin Drive App:

iOS:

  1. Open the phone's Settings menu
  2. Touch General
  3. Touch iPhone Storage
  4. Touch dēzl™ or Drive

Android:

  1. Open the phone's Settings menu
  2. Touch Apps or Apps & Notifications
  3. Touch App Info (Some phones skip this step)
  4. Touch dēzl™ or Drive

The current version of the dēzl app or Garmin Drive app should be displayed here.

3. Restart Phone and Headset

Be sure to completely restart your phone before proceeding.

See your phone's documentation for instructions on fully restarting your phone.

To reboot your Headset, hold power button until the headset turns off. Then hold the power button down until the headset turns on.

4. Re-Pair by Forgetting the Headset from Phone's Bluetooth Settings and Resetting the Headset

Clear the Headset From the Phone’s Pairing History:

Steps for clearing pairing history on the phone can vary by make/model. See your phone's manual or manufacturer if unsure how to clear your phone's pairing history. The steps below apply to most iOS and Android phones:

To Clear Pairing History on an iPhone:

    1. Open the phone's Settings menu
    2. Touch Bluetooth
    3. Touch the info button ("i" icon) next to the paired Garmin Device
    4. Touch “Forget this device”

To Clear Pairing History on an Android phone:

    1. Open the phone's Settings menu
    2. Touch Connections (some phones skip this step)
    3. Touch Bluetooth
    4. Touch the gear icon next to your listed Garmin Device
      • Select the name of the listed Garmin Device instead on some Android phones
    5. Touch Forget/Unpair

The Garmin Device will now be cleared from your phone's pairing history.

Resetting the Headset to Factory Default Settings

You can reset your headset to the factory default settings. Resetting clears all data from the headset, which will clear the pairing history with the phone as well.

To Reset the dēzl™ Headset 100 or dēzl™ Headset 200 to Factory Default Settings

  1. Turn on the headset.
  2. Hold GARMIN and Power Off Icon for five seconds.

The LEDs flash while the headset resets.

To Reset the dēzl™ Headset 110 or dēzl™ Headset 210 to Factory Default Settings

  1. Turn on the headset
  2. Hold GARMIN and ANC for five seconds.

The LEDs flash while the headset resets.

 To Forget the Headset in the dēzl App:

1. Open the dēzl™ App

2. Touch the Settings wheel

3. Touch dēzl™ Headset

4. Touch Forget Device

5. Touch Forget Device again

The dēzl™ Headset will now be cleared from the dēzl™ App.

 To Forget the Headset in the Garmin Drive App:

1. Open the Garmin Drive app

2. Touch the Settings wheel

3. Touch the Vehicle profile the headset is added to

3. Touch dēzl™ Headset

4. Touch Forget Device

5. Touch Forget Device again

The dēzl™ Headset will now be cleared from the Garmin Drive App.

To Pair the dēzl™ App and Your dēzl™ Headset: 

See Installing the dēzl™ App for instructions on pairing with the dēzl app.

To Pair the Garmin Drive App and Your dēzl™ Headset: 

See Installing the Garmin Drive App for instructions on pairing with the Garmin Drive app.

5. Clear App Cache

Clear the dēzl™ App or the Garmin Drive App's Temporary Cache Files From the Phone:

Clearing the cache can remove any problematic files from the phone's temporary storage.

To Clear the Cache:

Most iPhones:

  1. Double-press the iPhone's home button
  2. A list of currently running apps will appear
  3. Swipe up on the dēzl™ App or Garmin Drive app to remove it from the list and close it

iPhone X and Newer:

  1. Swipe up from the bottom of the screen and pause
  2. Swipe up on the dēzl™ App or the Garmin Drive app

Android:

  1. Open the phone's Settings menu
  2. Touch Storage (some phones skip this step)
  3. Touch Other Apps or Apps
  4. Touch dēzl™ or Drive
  5. Touch Storage (some phones skip this step)
  6. Touch Clear Cache

The temporary files should now be cleared and the app can be re-opened.

6. Uninstall and Reinstall the dēzl™ App or Garmin Drive App

To Uninstall the dēzl™ App or Garmin Drive App on Android:

1. Open the phone's Settings menu

2. Touch Apps

3. Touch the dēzl™ app or Drive app

4. Touch Uninstall

To Uninstall the dēzl™ App or Garmin Drive App on iOS:

1. Touch and hold the dēzl™ app icon or the Garmin Drive app icon

2. Touch the X that appears in the corner of the icon

It can be re-downloaded from the phone's Google Play Store/iTunes App Store.

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