Android File Transfer Not Working | Fixes That Work

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Android File Transfer usually fails because of the USB cable, the phone’s USB mode or a Mac permission block, and you can fix it with checks.

Why Android File Transfer Stops Working

Android File Transfer is a Mac app that talks to your phone over MTP, a USB file-transfer channel. When that channel breaks, the app can’t see folders, it opens with an empty window, or it shows a “can’t connect” message.

Most breakdowns come from three places. The cable may only carry power. The phone may be locked, set to charge-only, or set to photo mode. The Mac may be blocking the app from reading storage, often after a macOS update or a fresh install.

MTP is picky about “one app at a time.” If Photos, a backup suite, or another transfer tool grabs the connection first, Android File Transfer gets shut out. A clean reconnect, with the right USB mode selected before you open the app, fixes many stubborn cases.

What The Symptoms Usually Mean


  • Check the message

    — “Can’t connect to device” can mean the phone isn’t in File Transfer mode, the cable is charge-only, or MTP is busy.

  • Check the folder list

    — A blank window can mean the screen is locked, storage access is restricted, or macOS blocked file access.

  • Watch stability

    — Random disconnects point to a loose port, a hub issue, or sleep dropping the USB session.

Android File Transfer Not Working

If you’re seeing android file transfer not working errors, start here. This short sequence fixes a big share of cases without touching any deeper settings.


  1. Swap the cable

    — Use a data-rated USB cable, not a charge-only lead, then plug it straight into the Mac.

  2. Wake the screen

    — Keep the screen awake, then check for a USB notification in the shade.

  3. Pick File Transfer

    — Tap the USB notification and choose File Transfer or MTP, not Charging or Photo Transfer.

  4. Close competing apps

    — Quit Photos, Finder import windows, and any sync apps that jump in when you connect.

  5. Reconnect cleanly

    — Unplug, wait five seconds, then plug in again and open Android File Transfer.

After the reconnect, wait a few seconds before clicking around. If the device list stays blank, keep going and lock in the USB mode and Mac permissions.

Do The Steps In This Order

Set the phone to File Transfer first, then open Android File Transfer. If you open the app while the phone is still on charge-only, the app may latch onto a dead session and refuse to refresh.


  • Plug in and wake screen

    — Connect the cable, wake the screen, and pick File Transfer.

  • Open the app

    — Launch Android File Transfer after the USB mode is set.

  • Transfer in batches

    — Move a few large folders instead of thousands of tiny files at once.

Android File Transfer Won’t Connect On Mac With Fast Checks

This is the spot where small details matter. A Mac can detect a phone in System Information while Android File Transfer still can’t read storage. The steps below line up the phone, the cable, and macOS so MTP can finish the handshake.

Set The Phone’s USB Mode The Right Way

On many Android phones, the default USB setting is charging. You need to switch it each time you plug in, unless you change the default in Settings.


  • Open the USB alert

    — Swipe down, tap the “Charging this device via USB” notice, then choose File Transfer.

  • Change the default

    — In Settings, search for “USB preferences,” then set the default to File Transfer when the option exists.

  • Keep the screen on

    — Some phones block storage access while the lock screen is on.

  • Check USB control

    — In the USB panel, set “Controlled by” to This device if the toggle appears.

Catch Mac Security Prompts You May Have Dismissed

macOS can ask for accessory access when you connect a device over USB. If you denied it once, the phone still charges, but file access never starts.


  • Watch for the dialog

    — Look for an “Allow accessory to connect” prompt and allow it.

  • Sign in to the Mac

    — Some Macs only show the prompt after you sign in and the desktop is active.

  • Reset the connection

    — Unplug, restart the Mac, then try again so the prompt can reappear.

Grant The App The Access It Needs

Recent macOS versions gate file access more tightly. If Android File Transfer can’t see folders, giving it the right permissions can unblock it.


  1. Open Privacy settings

    — On the Mac, open System Settings, then Privacy & Security.

  2. Enable Full Disk Access

    — Add Android File Transfer and turn it on, then quit and reopen the app.

  3. Allow removable volumes

    — If your Mac asks about removable volume access, allow it for the app.

Try A Clean User Session

If the app works on one Mac user account but not another, a background login item or a per-user permission can be the blocker. Testing a clean session narrows it down fast.


  1. Log out and back in

    — Sign out of your Mac account, sign in again, then retry the transfer.

  2. Test a new account

    — Create a fresh macOS user, sign in there, and try Android File Transfer.

Reset Android File Transfer And The MTP Connection

When android file transfer not working shows up even after the checks above, assume the connection is stuck. Clearing the running process and the app’s preference files can bring it back.

Force-Quit The Background Process


  1. Quit the app

    — Close the Android File Transfer window and quit it from the menu bar if it’s still running.

  2. End the agent

    — Open Activity Monitor, search for “Android File Transfer Agent,” then quit it.

  3. Reconnect the phone

    — Unplug, wait, then plug in and pick File Transfer before you open the app.

Clear Stale Preference Files

If the agent keeps relaunching with the same error, the saved settings may be corrupt. Removing the small preference files resets the app without touching your data.


  1. Open Library folders

    — In Finder, use Go to Folder and open your user Library Preferences area.

  2. Search by name

    — Look for files that include “android” and “mtp,” then move only the Android File Transfer ones to Trash.

  3. Restart the Mac

    — Reboot to clear the old agent, then try again with the screen on.

Reinstall With A Clean Slate

A reinstall can fix a damaged app bundle. It also helps after macOS upgrades that change security rules.


  1. Remove the app

    — Drag Android File Transfer to Trash, then empty Trash.

  2. Restart the Mac

    — Reboot so background items tied to the app fully stop.

  3. Install again

    — Install the app again, then repeat the USB mode steps on the phone.

Make Large Transfers Stick

If transfers stall at random percentages, you can often finish the job by changing the way you copy.


  • Copy fewer items

    — Send one folder at a time, then confirm it landed before you start the next.

  • Keep the screen awake

    — Turn off battery saver for the session and stop the phone from sleeping.

  • Use a short path

    — Copy to a top level folder like Download first, then sort files on the phone.

Conflicts That Block Transfers

Some tools hook into MTP and grab the connection first. Others install background agents that keep running after you close the window. If Android File Transfer opens but can’t connect, conflicts are a common reason.

Phone Suites And Sync Tools


  • Quit device suites

    — Apps like Samsung Smart Switch, older Kies tools, or backup suites can block MTP.

  • Pause photo import

    — If Photos launches, close it before you open Android File Transfer.

  • Stop other MTP apps

    — Quit any tool that claims Android transfer features so only one app is trying.

Cables, Hubs, And Adapters

USB C hubs can be flaky with MTP, and some adapters carry power but drop data. A direct connection is the simplest test.


  • Plug in direct

    — Connect the phone straight to the Mac with a short, data-rated cable.

  • Avoid long chains

    — Remove hubs, dongles, and extension cables during testing.

  • Try another port

    — Switch ports, flip the USB C connector, and try a different adapter if needed.

Storage And Device Modes

If the phone’s storage is near full, file listing can lag or fail. Some devices also switch to a restricted USB mode when a work profile or a device policy is active.


  • Free space

    — Delete a few large items or move files to a drive, then retry.

  • Turn off tethering

    — Disable USB tethering and reconnect so the phone can expose MTP.

  • Check work profiles

    — If your phone is managed, test with personal storage folders instead of locked work folders.

Alternatives When Android File Transfer Keeps Failing

If you’ve tried the steps and the connection still drops, switching methods can save time. Some options avoid MTP entirely, so they keep working even when Android File Transfer is finicky.

Method When It Fits Setup Notes
OpenMTP or similar USB transfers on Mac Install the app, pick File Transfer on the phone, then drag files across.
Cloud drive Photos and docs Upload from Android, download on Mac, then remove uploads if you need space.
WiFi send apps Same network sharing Install on both devices, keep them on the same WiFi, then send files.
SD card or USB C drive Large video folders Copy to removable storage on Android, then plug that storage into the Mac.

Cloud Moves That Stay Tidy

If you only need a handful of folders, cloud storage sidesteps cable and port problems.


  • Upload from Android

    — Use your cloud app to upload the folder you want to move.

  • Download on Mac

    — Grab the folder to a local Mac directory so it’s available offline.

  • Clean up after

    — Delete the upload or move it to long term storage to keep your cloud space free.

WiFi Sending Without Cables

WiFi transfer apps are great for mixed files like screenshots, PDFs, and short clips. They also work when you can’t find a data cable.


  • Use the same network

    — Put the phone and Mac on the same WiFi so discovery works.

  • Send from the phone

    — Pick files in the Android share sheet, then send to the Mac app.

  • Confirm the destination

    — Save into a single folder on the Mac so you can sort later.

Pick the method that matches the file size and how often you do transfers. If you move gigabytes every week, a USB drive or SD card can be the steadiest route. If you move a few items now and then, WiFi or cloud tools feel lighter.

Once transfers are working again, stick with a known good cable and keep the USB mode routine consistent. Most “it worked yesterday” failures come from a small change in the cable, the port, or the phone’s mode.

If the app fails, switch tools; your files matter more today. Save a spare data cable too.