If your Garmin DriveSmart 65 has a black screen but still provides voice instructions, you can try the following steps to fix the issue:
1. Perform a soft reset: Press and hold the power button for about 12 seconds until the device turns off and then on again[1][3].
2. Ensure the device is fully charged: Connect it to a power source for at least an hour to rule out battery issues[3].
3. Check for overheating: If the device was exposed to direct sunlight or high temperatures, allow it to cool down before attempting to turn it on.
4. Verify display settings: Although unlikely if the screen is completely black, check if the display is set to night mode or if the brightness is turned down[2].
5. Update the firmware: If possible, connect the device to a computer and use Garmin Express to check for and install any available updates.
6. Factory reset: As a last resort, you can try performing a factory reset. Keep in mind this will erase all your data and settings.
If none of these steps resolve the issue, it's possible that there's a hardware problem with the display. In this case, you should contact Garmin support for further assistance or potential repair/replacement options[1][3].
Remember that while these steps can often resolve the issue, persistent problems may indicate a more serious hardware failure that requires professional attention.
Citations:[1] https://www.gps-forums.com/threads/garmin-drive-smart-65-traffic-screen-wont-turn-on.47464/
[2] https://forums.garmin.com/sports-fitness/cycling/f/edge-530/231120/screen-has-gone-black-and-nothing-seems-to-change-it-seems-to-be-working-but-with-a-black-screen
[3] https://www.justanswer.com/gps/ma0b4-garmin-drivesmart-65-doesn-t-turn-update-no.html
[4] https://www8.garmin.com/manuals/webhelp/drivesmart55-65/EN-US/GUID-5DDC41B8-E786-41C9-85FD-7D8A45BB0C23.html
[5] https://forums.garmin.com/developer/connect-iq/f/discussion/264719/bug-report-garmin-drivesmart-65