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How to Fix a Garmin GPS?

Asked by
Steven Mark
2019/04/23 06:36
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1. Disconnect your Garmin GPS from its external power and completely turn it off. ...
2. Flip the Garmin GPS antenna if your unit has one. ...
3. Press the "Reset" button on the backside of the unit. ...
4. Reconnect your GPS unit to any external power source like the car plug, your PC, or wall charger.
Contact Garmin Support via Internet or telephone if the "Reset" button has not fixed the problem.

Read More: http://800-customerservicenumber....
Operating System:
Windows 10
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Answered by
Lokesh Yadav
24 days ago
Hi Steven,

If your Garmin GPS won’t turn on despite several attempts then follow below fixes.

Corrupt Garmin USB Driver
Generally, Garmin Nuvi devices like Garmin Nuvi 30, 40, and 50 or their embedded applications fail to reboot due to corrupt Garmin’s USB driver. So, when Garmin GPS not responding to your commands- Update Garmin Nuvi software and devices.
  • To commence, download Garmin’s USB driver for Windows/Mac and pre-load it on your device. Note: Make sure you also update any old version- if present.
However, if the update or install of these drivers fail- checkout the .NET framework installed on your device!

Incompatible .NET Framework
  • If you’re using an old or some incompatible .NET framework on your Garmin device- immediately update it with the latest and compatible framework required for your Garmin GPS device.
  • Other than this, install a Windows media player 11 or greater- in case you are working via the Windows operating system.
Improper Installation of Map on Garmin Device
Newly purchased Garmin device doesn’t imply the correct map installation on your device.
No doubt, it’s rare but still doesn’t take chance by leaving this troubleshoot!
Switching to its resolution, you must know that partial Garmin Map download or install- won’t let your Garmin GPS turn on unless fixed.
Therefore, to get out of this trouble:
  • Connect your Garmin device or memory card to the computer or laptop. Next, download Garmin Mapinstall on your system.
  • When you launch the Mapinstall software, select the PC connected device from the drop-down of ‘Device’ option and click ‘Next’ button.
  • The grey rectangle shows the map region that you can select. However, you may even select the whole map using drag-drop option. If you have any other map to install, simply go to the drop-down box and select any map from the list you want to install on your Garmin GPS device.
  • Once selected, click “Next” to finish the Map install process.
  • Your maps will begin to download on your Garmin GPS device or micro SD card connected to the PC.
Note: Wait patiently for the process to complete as the time to download and install Garmin maps on your GPS device depends on the number and size of maps.
Important: After Mapinstall software download completes, don’t forget to scan the .exe file.
In case, you are unable to install maps or face any other error concerning ‘Garmin GPS not turning ON’ then, reach out the GPS Support online for help.

Faulty Hardware
Make sure- you check the hardware of Garmin GPS device as they may also trigger ‘Garmin GPS won’t turn on’ issue.
In detail, ensure your Micro SD card is not loose or placed improperly, device batteries are charged to supply enough power to the GPS device, and Garmin motherboard isn’t damaged. In case, you suspect any hardware issue with your Garmin GPS device, contact the manufacturer or retailer for its immediate replacement.

Garmin GPS stopped working after New GPS Map Install
Finished installing new Garmin map on the device!
Even the GPS device startup seems fine unless the error “Can’t authenticate map” doesn’t prompt on-screen.
Troubled by same or somewhat similar problem- where you can’t turn on Garmin GPS on your device?
Then, right away use these troubleshooting steps:
  • With no backup file and deleted .gma file- the best way to now recover is by using the clone Start with the desired Garmin map download on Mapinstall software. By this, you’ll get all three types of files (.img, .gma, .uni) in your system folder of SD card.
  • Delete the old gmap files in system folder on your Garmin GPS device and copy these new files onto the system folder.
  • However, if you can’t locate any of these files (mentioned above) in your GPS device, go to folder options in Windows Explorer and select the radio button: ‘Display all hidden files and folders’ to make it visible.
  • In case, you still can’t find the system folder or gmap file,
    • Start your Garmin GPS device and navigate to Volume screen.
    • Next, press the upper-right corner of screen for 10 seconds unless “Developers Screen” pop up.
    • Then, select MTP settings and change your selection from AUTO DETECT to MASS STORAGE.
    • Lastly, click on OK button and restart your Garmin GPS device to connect it in the mass storage mode.
Note: You may even press and hold the Speedometer on dashboard screen of Garmin GPS device to access developer screen.
  • By now, you’ll definitely see the system folder and old Gmap file on your device. Delete the one with old date and start your device again. The error will no more display on-screen.
  • Finally, try the Mapinstall software to reinstall the map you wanted on your device.
I hope this helps.



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