DFlasher User Manual
This guide walks you through using DFlasher, from license purchase to completing a safe flash using the included OBD Bluetooth adapter.
1
Purchase a Flashing License
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A DFlasher license can be purchased directly in our shop: https://shop.dflasher.com/
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The license bundle includes the OBD Bluetooth adapter along with a flashing licence. It is a single purchase solution that unlocks the full functionality of the app.
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During checkout, create a DFlasher account. The email you use will be linked to your license and adapter, flashing history, and help us troubleshoot individual issues if needed.
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After purchase you will receive a confirmation email with order details.
Note: Licenses are tied to your account. Do not share your account credentials. If you already have a DFlasher account, purchase the license while logged in so it is applied automatically. A "missing license" issue is typically resolved by logging in with the account used to make the purchase.
2
Download the App
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On your mobile device, visit the App Store (iOS) or Google Play Store (Android). Download and install the DFlasher app.
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Open the app and accept all required permissions: Bluetooth, and location on Android, if required by the OS for Bluetooth scanning. Issues with connectivity are typically resolved by uninstalling the app and re-accepting all permissions.
3
Login
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Log in to the DFlasher App using the same email used to create your account.
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After login, you will arrive at the startup screen. You will have access to the side menu and the ‘connect to adapter’ button.
4
Adapter Connection
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Locate the OBD-II port on your BMW (on the left hand side under the dash or beside the hood release).
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Plug the OBD adapter into the port. Turn ignition ON, but do not start the engine.
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Tap “Connect to Adapter.” (Entering Bluetooth settings is not required, adapter connection is fully automatic)
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Tap “Connect to Car”. The app will then direct you further.
Adapter troubleshooting pair / connect issues:
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Ensure Bluetooth is enabled.
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Reboot the adapter by unplugging and replugging.
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if unable to connect to car: ensure ignition is ON and that you have a good internet connection. Wifi or mobile data can be used.
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Android users: confirm Location permission is granted for the app (some Android versions require it for Bluetooth scanning)
5
Main Menu - Info Page
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Once connected to the car, the app enters the main menu. In the bottom menu, there is access to 3 tabs - each with a specific function.
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The info tab (left) gives you an overview of vehicle information and license status.
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The flashing tab (center) is where most of the app’s work takes place. This is where you can view OTS maps or start a flashing procedure.
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The diagnostic tab (right) is used to collect control unit information, scan for DTC’s or clear DTC’s.
6
OTS Maps
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In the flashing tab, OTS maps are available for flashing.
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Each OTS map includes a stage and a list of available optimizations. Click the “release notes” dropdown to see more information.
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The app offers a Stock file extraction feature. DFlasher’s stock extraction is intended for tuners and experienced users who want the raw OEM software for map development — it is not a backup tool, nor does it backup a third-party tune.
7
Flashing
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Choose a map and press "Flash".
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A pre-flash checklist will appear. Follow the instructions.
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Monitor progress bar and messages. Typical flash duration depends on the ECU state. Initial unlock lasts approx 17 min, vehicle calibration flashing only lasts approx 2 minutes.
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Do not: close the app, unplug the adapter, turn the ignition off, or start the engine.
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Wait for the verification success message after writing.
On the rare occasion that a flash fails:
The app will display an error and provide step-by-step guidance to recover the ECU by using special app functions.
8
Flash Successful
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After a successful flash the “EXIT” button appears, which returns to the main menu.
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Turn the ignition off and wait about 30 seconds for the ECU to go to sleep.
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After 30 seconds, the engine can be started and the car is ready to drive.
SEC.
