If a straight USB lead is used to power a garmin GPS from a cigarette socket or 12v supply the unit usually goes straight into file transfer mode.
Mine did when I used a cheap power supply from eBay.
So I searched for a solution and found this.
I made up a lead as per this video and it works just fine.
If you don’t want to watch the lengthy spiel then just open up the USB cable and cut the green and while wires.
Solder them together on the mini / micro side of the lead and just insulate the other cut ends.
Then protect the joint and repair the cable outer with heat shrink and it works a treat, no more “file transfer mode”
Here’s link to the video
And another to the 5v power supply I bought.
Good luck.
Mine did when I used a cheap power supply from eBay.
So I searched for a solution and found this.
I made up a lead as per this video and it works just fine.
If you don’t want to watch the lengthy spiel then just open up the USB cable and cut the green and while wires.
Solder them together on the mini / micro side of the lead and just insulate the other cut ends.
Then protect the joint and repair the cable outer with heat shrink and it works a treat, no more “file transfer mode”
Here’s link to the video
And another to the 5v power supply I bought.
USB Car Hard Wire Kit Box HardWire Charger Adapter For Dash Cam Camera DVR | eBay UK
No need for cable from car cigarette lighter socket, replace it with a permanent hidden cable Installation in minutes with little to no expertise required. Simply piggy backs from car fuse box socket for Car Dash Cam Hardwire Fuse Kit.
ebay.us
Good luck.