GPSMAP 66S won't power on without connect usb cable

Discussion related to the Garmin GPSMAP 66s/st GPSr
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hermanx
Posts: 1
Joined: Sun May 09, 2021 1:41 am

GPSMAP 66S won't power on without connect usb cable

Unread post by hermanx »

The device won't power on without the usb cable being connected to a power source. When connected, I can do anything/everything, as soon as I disconnect the power usb cable, pressing power button on top right will not turn the device on. Help!
ConiKost
Posts: 947
Joined: Sat Jan 16, 2021 4:08 pm

Re: GPSMAP 66S won't power on without connect usb cable

Unread post by ConiKost »

Sounds like a dead battery?
Garmin DriveSmart 86 MT-D (FW 6.80, HW V8, GPS 9.00.50, 32GB SD)
Garmin Montana 750i (FW 19.00, HW V6, GPS 2.90, Touchscreen 85.07, ​64GB SD)
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GPSrChive
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Joined: Fri Jan 20, 2017 11:29 pm

Re: GPSMAP 66S won't power on without connect usb cable

Unread post by GPSrChive »

Does the unit shut off instantly when the USB cable is disconnected?
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