// FLYSIGHT 2 GUIDE · BLUETOOTH TRACK TRANSFER

Download FlySight 2 tracks over Bluetooth

TESTED ON REAL HARDWARE · UPDATED 20 AUGUST 2026

Groundrush connects directly to a FlySight 2 and copies its recordings to an Android phone or iPhone. The transfer stays between the logger and the phone: there is no Groundrush account, cloud upload or laptop in the middle.

The full path has been tested on Android. A 1.1 MB jump transferred in about 32 seconds on the device we tested. Bluetooth discovery, pairing and live telemetry have also been confirmed on iPhone; track transfer on iPhone still needs its own field run.

What you need

A FlySight 2 running firmware with Bluetooth file access.
Groundrush on Android or iOS. The app is currently in closed beta; request access at [email protected].
Bluetooth enabled. On Android 11 and older, location services and the location permission must also be enabled or BLE scanning silently returns no devices.

Pair the FlySight 2

Unplug the USB cable. While the FlySight is mounted as a USB drive, its firmware blocks Bluetooth file access.
Open Groundrush and select the Device tab.
From idle, double-press the FlySight button. Its green LED pulses during the roughly 30-second pairing window.
Select the FlySight shown in Groundrush and accept the operating system's pairing prompt.

Copy a jump to the phone

On the connected-device screen, open Tracks on the device.
Wait while Groundrush reads the recording list. The newest sessions appear first.
Select a recording and start the transfer. You can cancel safely: an incomplete file is not added to the library.
Open the downloaded track from the Tracks tab for automatic segment detection, charts and 3D replay.

What real-device testing found

125 sessions listed in about 40 seconds.
A 1.1 MB recording copied at roughly 33 KB/s in about 32 seconds.
Cancelling midway left no partial track in the library, and the next transfer still completed normally.
Only one phone can hold the FlySight connection at a time. Close Groundrush on the first phone before handing the logger to another.

If the FlySight does not appear

Confirm it is not plugged into USB and is inside its pairing window.
Turn on Bluetooth and, where Android requires it, location services.
Close any other phone or app already connected to the logger.
If Bluetooth support is missing from the installed firmware, update the device before trying again. The Groundrush browser flasher is specifically for the custom ENGO HUD firmware; the official FlySight firmware page carries the official releases.

Groundrush is an independent project and is not made by, endorsed by or affiliated with FlySight.