I connected my Edge Overlander to my Mac and nothing happened. I want to know what methods people actually use for this. I saw someone mention Android File Transfer. That seemed strange for a Garmin device at first, but Garmin devices use MTP, so maybe that’s the connection. If that reasoning is correct, would MacDroid work too, since it also supports MTP? I’d like to hear what actually works, not just what should work in theory.
Android File Transfer isn’t worth using at this point. Google hasn’t maintained it in a long time, even though it still appears in search results.
MacDroid is a reasonable choice. Garmin devices use MTP, which is what MacDroid is designed to handle.
If you’re only trying to add routes, you may not need file access at all. Add the route through Garmin Connect and let it sync to the device.
MTP EasyTransfer is another option on the App Store. It’s a small paid app without many extras, but it should be enough for basic file transfers. Garmin Express can expose some files too, though the access is much more limited than mounting the device directly.
Don’t install anything until you rule out a charge-only USB cable, since it will power the Garmin but never expose its files. Try a known data cable and a direct Mac port first; if it still stays invisible, then MacDroid makes sense for the MTP connection.
It won’t mount in Finder like a normal external drive. The Overlander presents its storage over MTP, and macOS doesn’t support browsing MTP devices on its own.
MacDroid is probably the least awkward option if you need access to internal storage. Keep the Garmin awake and unlocked, then quit Garmin Express or any other transfer app before connecting, since only one program can usually grab the MTP connection at a time.
For files that can live on the microSD card, removing the card and using a cheap USB card reader is often faster and avoids MTP entirely. Just don’t move or rename Garmin system folders unless you know exactly what the device expects.
Skip the urge to open Disk Utility and start poking around when the Overlander doesn’t show up. That’s where people accidentally break things. macOS not mounting it is expected behavior, not a fault, so there’s nothing to repair there.
@darkbear1028zone is right that the card reader route is the least painful, but there’s a catch worth flagging: it only helps for stuff that actually lives on the microSD. On the Overlander a lot of the map data and system files sit on internal storage, so if what you need isn’t on the card, you’re back to MTP whether you like it or not. Check what’s on the card first before assuming you can dodge the whole mess.
Your ‘nothing happened’ moment is usually the device itself, by the way. The Overlander doesn’t always jump into file transfer mode on its own. Unlock it, keep the screen from sleeping, and watch for any prompt on the Garmin before you blame the Mac or the cable. For routes specifically, I’d lean on Garmin Connect sync like the first reply said and not bother mounting anything. MacDroid earns its keep when you genuinely need to see internal folders, but for a single route it’s more setup than the job needs.
Don’t keep waiting for a Finder icon or a big “USB connected” message on the Garmin. The Overlander does neither on a Mac, and Garmin specifically notes that this model may not show a connection icon on its own screen. “Nothing happened” can therefore mean the cable connection is working, just not in the way a normal USB drive works. Garmin Express or Mac System Information is a better first check than Finder.
The name confused me at first too: it’s the Garmin Overlander, not an Edge Overlander. Edge units are the cycling computers, so searching with “Edge” mixed in can lead to instructions for the wrong device family. Android File Transfer sounds odd until you realize this is about the MTP connection method, not about putting Android apps on the Garmin.
I’d slightly push back on the Garmin Connect route suggestion. For the Overlander, Garmin Explore is the more relevant service for waypoints, tracks, and routes. The device can sync that data with an Explore account over Wi-Fi, so USB may be unnecessary if that is all you are trying to move.
There is another route for GPX files that seems easier than fighting with MTP: put them on a microSD card using the Mac, insert the card into the Overlander, then use Explore > Library > Import to Explore > Memory Card. That is different from merely browsing whatever files happen to be on the card. The Overlander has an actual import function for routes, tracks, and waypoints.
If you genuinely need to inspect internal folders, then an MTP program such as MacDroid is the practical Mac answer. Use a known data cable, quit Garmin Express completely, and open only the MTP program. For ordinary route transfer, though, I would try Explore sync or the microSD import before paying for another app. Internal file access feels like the most complicated option, not the normal starting point.
The annoying catch with an MTP app is that you still shouldn’t treat the Garmin like a normal Mac drive. Editing a GPX file directly on the device, or dragging a large folder around while the screen sleeps, is a fine way to end up wondering whether anything actually copied.
Copy files to the Mac first, make your changes there, then transfer the finished version back with MacDroid or another MTP client. Keep the Overlander awake and disconnect it through the app before pulling the cable. MTP is functional, but “elegant Mac storage experience” was clearly not on the agenda.
For routine updates, use Garmin Express. For routes and waypoints, Explore sync or microSD import is usually less aggravating. I’d only bother with MTP when you specifically need internal storage, and I’d avoid bulk reorganizing or renaming Garmin folders through it. Also, yes, start with a verified data cable. A charge-only cable can waste an impressive amount of time while looking perfectly innocent.
On a Mac, I would expect a properly connected Overlander to show up as removable storage, although it may take a minute and Finder may hide it. Garmin currently lists the Overlander as using MTP with Windows but Mass Storage Mode with macOS, so I would not buy an MTP app until you confirm what the Mac is actually detecting.
Open System Information, select USB, and reconnect the Garmin. That gives you a useful dividing line:
- No Garmin device in the USB tree: suspect the cable, adapter, hub, port, or USB accessory permission.
- Garmin appears there but not in Finder: check Finder Settings under General and Sidebar to make sure external disks are enabled.
- A volume appears but Garmin Express cannot use it: quit other Garmin or transfer software and reconnect.
- It repeatedly connects and disappears: try a direct port and keep the Overlander powered and awake.
Newer Apple silicon MacBooks can block an unfamiliar USB accessory until you approve the connection. The permission prompt is easy to miss, especially if the Mac was locked when you plugged it in. Check System Settings under Privacy & Security if you never saw the prompt.
MacDroid or OpenMTP can still be useful if your particular setup presents the unit as MTP. OpenMTP is the cheaper experiment since it is free and explicitly includes Garmin support, though I would treat it as a fallback rather than proof that the Overlander must use MTP on every Mac.
The “Edge Overlander” wording matters here too. If Garmin Express or System Information identifies the hardware as something other than an Overlander automotive navigator, the connection behavior may be different. Check the exact model name before following Edge-specific USB instructions.