Support

Named GTN/GTN Xi waypoints: custom EFB names instead of USR001/USR002. Import user.wpt before the plan. GAirFlash supplies the separate waypoint file for GTN/GTN Xi; Waypoint Info ▸ Import Waypoints loads those names before you import the route.

Some navigator and firmware configurations cache the card’s files until the next start. A successful upload does not establish when your navigator will see it. If the file is missing from its import list, follow the aircraft’s procedures for restarting the navigator on the ground. Do not assume that engine start will restart it.

Garmin Connext is a different transfer path: Flight Stream 210 is an installed wireless gateway; Flight Stream 510 is a wireless transceiver in the navigator’s SD-card slot. Availability depends on the navigator, firmware and EFB.

Sharing a supported route queues it with no Wi-Fi needed. At the aircraft, open GAirFlash and join the card’s network. With automatic uploads enabled, it attempts queued transfers when a known card becomes reachable. Background timing is controlled by iOS and Android; keep the app open for a predictable transfer.

The app checks the card’s directory listing for a nonempty file in the expected folder. It does not compare the full file contents or confirm navigator acceptance. Import and verify the route on the navigator before departure.

GTN / GTN Xi: Flight Plan ▸ Menu ▸ Catalog ▸ Menu ▸ Import, then choose the route. When a separate user.wpt file was uploaded, run Waypoint Info ▸ Import Waypoints first to preserve custom names.

G1000 / G1000 NXi: FPL ▸ Flight Plan Catalog ▸ select an empty slot ▸ Import (or Menu ▸ Import Flight Plan) ▸ choose the file ▸ ENT to confirm. Menu details depend on the aircraft and software version; follow its pilot’s guide.

GAirFlash prepares the files. Confirm the import succeeded and verify every waypoint and leg against your EFB before departure.

The card switches its own Wi-Fi off after a while to save power, and it comes back only when the card restarts, which in the aircraft means a power cycle: Garmin says not to pull or insert the card while the navigator is on. Settings lets you choose how long it waits — "Stays on" is recommended, and GAirFlash writes that to the card for you.

Callsign, which folder the navigator reads, and how many plans to keep are stored on the card itself — not on your phone. So whoever flies the aircraft next finds it already set up, and everyone sees the same thing.

What stays on your phone is what is yours: how you like plans named, whether this phone uploads automatically, and your notifications. Change those in Settings and they follow you, not the aeroplane.

If two of you change a card's settings at once, the second change is refused rather than quietly overwriting the first.

Choose how many active plans to keep on the card. Older plans move to its archive folder, shared by everyone who flies the aircraft.

Tap a plan’s archive or restore button to move it. Restoring to a full active folder archives the oldest plan; the app shows which one will move. Active and archived routes can both be sent back to your EFB.

GTN plans → /FPL G1000 plans → card root Archived → /FPL_Archive

Toshiba FlashAir W-04 production has ended. Kioxia ended downloads and support for the official FlashAir mobile app after 2026-03-31. GAirFlash is an independent flight-plan transfer app, not the manufacturer’s app or a general photo-transfer replacement.

Use a 16 or 32 GB W-04 with uploads enabled (UPLOAD=1 in SD_WLAN/CONFIG). Enabling uploads requires a reader; a card configured by a previous owner may also need its existing administrator code. Back up the card before changing its configuration and confirm database-card requirements with your avionics shop. The 64 GB W-04 is outside GAirFlash’s stated compatibility scope.

The documented hardware check used a 32 GB Toshiba FlashAir W-04, firmware 4.00.04. Identification, file reads, upload and byte-for-byte read-back were verified against that card. This is card-level evidence, not qualification of every aircraft, navigator, phone or firmware combination.

The app provides GTN/GTN Xi and G1000/G1000 NXi file profiles. Confirm SD-card flight-plan import is available on your unit and verify the imported route. FlashAir W-03 has not been tested; compatibility is not confirmed.