Not sure which Mac you have? Open the Apple menu → About This Mac. If that screen mentions Intel, choose Intel — otherwise choose Apple Silicon. Every Mac sold since 2021 is Apple Silicon.
Dynon Data Manager is a small program for your Windows computer or your Mac. It downloads the latest
aviation data for your Dynon SkyView — navigation data, obstacles, charts and approach plates —
and copies it onto a USB memory stick. You then plug that stick into your SkyView to update it.
That's the whole idea: computer → USB stick → SkyView. This guide walks you through it once. After that it takes a couple of minutes each time.
01What you need
A Windows computer (Windows 10 or 11) or a Mac (macOS 12 Monterey or newer, Apple Silicon or Intel), with an internet connection.
Your EasyVFR account (the same login you use for EasyVFR). If you don't have one, create it first at the EasyVFR website.
A USB memory stick, formatted as FAT32 (your SkyView only reads FAT32 — see step 5). A 16 GB or 32 GB stick is the sweet spot: it easily holds everything and can be fully formatted as FAT32. There's no benefit to a bigger one — Windows can't format sticks larger than 32 GB as a single FAT32 drive, so the extra space would just go to waste.
Your Dynon SkyView serial number (we'll show where to find it in step 4).
02Installing the program
On Windows
Download the installer from dynondatamanager.pocketfms.com/download — this link always gives you the newest version. It saves as a DynonDataManager-install installer file, with the version number in the name.
Double-click the downloaded file.
It installs itself in a few seconds. You will not be asked for an administrator password — that's normal and intended.
When it's done, Dynon Data Manager opens, and you'll find a shortcut on your Desktop and in the Start menu for next time.
Is it safe?The program is digitally signed by PocketFMS B.V., the makers of EasyVFR. If Windows shows a blue "Windows protected your PC" box, click More info then Run anyway — this can happen with brand-new versions until Windows has seen them a few times.
On a Mac
Download the program — most Macs need the Apple Silicon link. Only older Macs with an Intel processor need the Intel link. To check, open the Apple menu → About This Mac: if it mentions Intel, use the Intel link — anything else (a chip name starting with Apple M) means Apple Silicon.
Double-click the downloaded file (it ends in .dmg). A window opens showing the Dynon Data Manager icon next to your Applications folder.
Drag the Dynon Data Manager icon onto the Applications folder in that window. That's the whole installation.
Open it from Launchpad or your Applications folder. You can keep it in the Dock for next time.
The installer finishes in a few seconds — leave “Run Dynon Data Manager” ticked and click Finish.
03Signing in
Click Sign in with EasyVFR.
Your web browser opens. Log in there with your normal EasyVFR e-mail and password, and approve the request.
Your browser then shows a small box asking “Open Dynon Data Manager?”. Click the “Open Dynon Data Manager” button (some browsers shorten this to “Open” or “Open Link”). Important: click that button — not Cancel, even if Cancel looks highlighted. This is just the browser handing you safely back to the program. You may also see a message like “You signed in to Dynon Data Manager — you can now close this tab.” That's normal; you can close the browser tab.
Back in the Dynon Data Manager window, you're now signed in — it continues on its own.
New to this kind of login?Signing in through your browser is the modern, secure way to log in — your password is only ever typed into the official EasyVFR website, never into the program itself. The little “Open Dynon Data Manager?” box is simply your browser passing you back to the app after a successful login. It's completely normal and safe; just click Open.
TipIf the program keeps saying “Waiting for browser…”, switch to your browser and make sure you finished logging in (and clicked Open) there. Once you do, the app continues on its own.
The start screen. Click “Sign in with EasyVFR”.Your web browser opens — log in there with your EasyVFR account, then return to the program.After you log in, your browser asks to open the program — click Open. You can then close the browser.
04Adding your SkyView serial number
This tells the program which SkyView you're updating, so it can check your subscription and fetch the right data.
Click Add serial.
Type your serial number (for example 12345678).
Choose your device type from the list: HDX1100, HDX800, HDX1200, D1000 or D700.
Click Continue. Your serial appears in the list, with a coloured label showing its subscription status (see section 9).
Where do I find my serial number?It is shown on your SkyView itself, in its system-information screen. You can add several serial numbers if you look after more than one aircraft — they all sit in the same list.
The “Add serial” window: type your serial number, choose your device type, then click Continue.Your serial now appears in the list with its subscription status.
05Preparing a USB stick (important!)
A Dynon SkyView can only read sticks formatted as FAT32. Most new sticks already are, but it's worth checking once. Formatting erases everything on the stick, so use an empty one or copy off anything you want to keep first.
On Windows
Plug the stick into your computer.
Open File Explorer, find the stick under "This PC", right-click it and choose Format…
Under File system choose FAT32, then click Start.
On a Mac
Plug the stick into your Mac.
Open Disk Utility. You'll find it in your Applications folder, in the Utilities folder inside it.
Click your USB stick in the list on the left, then click Erase at the top of the window.
Set Format to MS-DOS (FAT). That's simply what a Mac calls FAT32 — you won't see the word "FAT32" anywhere in the menu, and that's fine.
Set Scheme to Master Boot Record, then click Erase.
Good news — the program watches out for you.When you pick a stick later, Dynon Data Manager checks it. If it isn't FAT32 it shows a warning like "NTFS — DYNON REQUIRES FAT32", so you'll know before anything goes wrong.
06Copying data to the stick
In the list, click your serial number to open its details.
Plug in your prepared USB stick.
Click Write Data to USB.
A list of connected sticks appears, each showing its free and total space. Click the stick you want to use. (A stick that is already being written to is marked and can't be picked twice.)
A progress bar shows the copying. The first time downloads everything, so it can take a little while; after that it's much quicker because the program remembers what it already has.
Wait until it finishes. That's it — your stick is ready.
Doing several aircraft?You can start a write for one serial and another at the same time — each gets its own progress bar.
Click a serial to open its details. The “Write Data to USB” button is at the bottom.Choose your USB stick from the list — each shows how much free space it has.A progress bar shows the data being copied onto the stick.When it shows the transfer is complete, your stick is ready for the SkyView.
07Loading the data into your SkyView
This last part happens on the aircraft, on the SkyView itself.
Safely remove the stick from your computer and take it to the aircraft.
With the SkyView powered on, insert the stick into its USB port.
Follow your SkyView's on-screen prompts / data-update menu to load the new files, exactly as described in your Dynon documentation.
The device side is Dynon's.The exact menu on the SkyView depends on your model and software version — follow Dynon's own instructions for loading data from USB. Dynon Data Manager's job is done once the stick is written.
08Optional: automatic copying
If you update often, the program can start copying by itself when it recognises your stick — no clicking needed. Open Settings (the gear icon, top-right) and you'll find two separate switches under Auto-start:
When I insert a USB stick, copy automatically — starts copying the moment you plug a recognised stick in while the program is open.
When the app launches with a stick already connected, copy automatically — does the same for a stick that was already plugged in before you opened the program.
Turn on whichever you like, or leave both off to stay fully in control. When they're off, plugging in a recognised stick simply shows a little pop-up with a Start button.
Naming your stick.If you label the USB stick with your serial number or your callsign, the program recognises it automatically next time.
Settings: the two Auto-start switches, the simultaneous-writes limit, and Clear cache.
09Understanding the coloured labels
Each serial in the list has a small coloured label so you can see its status at a glance:
Colour
Meaning
Green
Active subscription — you're good to update.
Amber
Heads-up — for example data is getting old, or a subscription is near its end.
Red
A problem — for example the subscription has expired.
Grey
Status unknown or not reachable right now — try the refresh button.
10Settings
Open Settings with the gear icon at the top-right. Besides the Auto-start switches, you'll find:
Maximum simultaneous writes — how many sticks can be copied at once. The default is fine for almost everyone.
Clear cache (under "Local data cache") — the program keeps a copy of downloaded charts and plates on your PC so repeat writes are fast. This button empties that store to free up disk space; the data simply downloads again next time.
11If something goes wrong
The SkyView won't read my stick.
Make sure the stick is formatted FAT32 (section 5). This is the most common cause.
It's stuck on "Waiting for browser…".
Switch to your web browser and finish logging in to EasyVFR there. The app continues by itself once you do.
Copying seems slow the first time.
That's normal — the first copy downloads everything. Later copies reuse what's already on your PC and are much faster.
A stick I plugged in before opening the app wasn't noticed.
Either re-insert it, or switch on "Copy automatically if a stick is already inserted when the app starts" in Settings (section 8).
I still need help.
Contact PocketFMS / EasyVFR support and mention you're using Dynon Data Manager and your serial number. The version number is shown in the app, next to the title — please include it.
12Removing the program
On Windows
Open Windows Settings → Apps, find Dynon Data Manager, and choose Uninstall. You'll be asked whether to also remove your saved data (your login and downloaded data). Choose No to keep everything for a future reinstall, or Yes to remove it completely.
On a Mac
Open your Applications folder and drag Dynon Data Manager to the Trash. That's all there is to it — though unlike Windows, a Mac doesn't ask about your saved data, so your login and downloaded data stay on the computer, ready for you if you ever install the program again.