This App Enables DeX Running Directly on the Z Fold
An app called GaDesk has been making the rounds in the Galaxy Z Fold community, claiming to do something many of us have wanted for years: run Samsung DeX directly on the phone itself.
Rather than plugging into a monitor, TV, or lapdock, this tool lets you launch the full desktop environment on your internal foldable display. Getting it up and running takes a little bit of tinkering, but the end result is quite functional.
Setting Up Wireless Debugging and Permissions
Because the app relies on wireless debugging to launch DeX locally, you will need to enable Developer Options first. Head into your device Settings, scroll down to About phone, select Software information, and tap the Build number repeatedly until Developer Options unlock.
Once inside the app, select the option to connect the driver and choose first-time pairing. You will need to allow notifications, as the app sends a prompt to help streamline the pairing handshake. From there, jump into Developer Options (it should take you there automatically), toggle Wireless debugging on, and tap "Pair device with pairing code." Copy the code, paste it into the notification reply, and hit send. After the handshake completes, head back to the app, grant the driver permissions, enable the required Accessibility service under Installed apps, and DeX will fire up right on your display.
Fixing the Scaling and Everyday Usability
When DeX first boots up on the inner screen, everything is going to look microscopic. To fix this, stop the driver, hop into your display settings, and bump the display zoom up to around 175%. Once you restart the session, the interface scales into a readable, usable desktop layout.
From there, everyday multi-tasking works just like standard DeX. You can open your app drawer, launch floating browser windows, snap apps side-by-side, and resize them on the fly. The utility also bundles a side control panel that gives quick access to volume, brightness, rotation toggles, a screen recorder, and a performance HUD.
Quirks, Peripherals, and the 15-Minute Limit
Pairing a small Bluetooth keyboard and mouse essentially turns the foldable into a micro-laptop. There are a few quirks to navigate, however. If you previously configured DeX to let your cursor flow between dual displays, the system might still think an invisible secondary display exists, which can make your cursor jump edges or lose scrolling focus until you mouse back over. The built-in on-screen trackpad mode also felt pretty finicky during testing, and certain home screen widgets might fail to render properly.
The biggest caveat right now is that the free version runs on a 15-minute timer. When the countdown expires, the session closes, though you can immediately relaunch it for another 15 minutes or watch an ad to add time. After reaching out to the developer, they confirmed that a paid Pro version without session limits is currently in the works for the Google Play Store.
Even with a few rough edges, having native, on-device DeX on a folding screen shows just how capable this form factor can be. If Samsung won't officially unlock the feature on phone displays, third-party tools like this prove that the concept works remarkably well.
