DME Unlock service provided by Femto in Finland. All BMW vehicles with a production date after 07/2020 require the Femto unlock for flash-based tuning. At this time, this cannot be Bench unlocked in-house.
Once your DME is unlocked, this enables OBD based tuning. This is required beforehand for such platforms as Bootmod3, and MHD Tuning through the OBD2 Port.
Starting July 2020 and onward, all BMW DMEs produced were shipped with an updated bootloader that rendered OBD Flash Tuning using existing protocols impossible. For a short time, there was no solution for this problem. Currently, as the community still anxiously waits for a US-Based DME Unlock for MDG1 DMEs, there is a solution available. The company known as Femto offers a mail-in service now known as the Femto Unlock. This unlocks your DME, making OBD Flash Programming possible.
Unlocking Process Outline
- Purchase the Unlock procedure from this page. With purchase, you’re also purchasing your Return Shipping Label.
- For those planning on running Bootmod3, you must create an account and activate your vehicle prior to removing your DME
- Remove your DME from your vehicle
- Mail your DME to our facility for preparation
- Typical wait time is 5-7 days (sometimes sooner) in which your DME will be unlocked and returned to you
- Reinstall DME in your vehicle, remember to turn off OTA updates
- Flash with your preferred Flash Tune
In the meantime your DME will be shipped via DHL to Femto/Finland, where it will be unlocked and returned to our facility in Anaheim, CA. In most cases with standard shipping this is about ~5-7 business day turnaround, sometimes sooner in some cases. Additionally, as an added safeguard - we add Apple AirTag tracking devices to each DME shipment prior to shipping.
Looking those for a DME Unlock for a vehicle produced Pre-07/2020, we can Bench Unlock in-house.
bootmod3 CustomROM V2 Unlock
Latest CustomROM version which includes map switching, flex fuel, antilag, in-dash ethanol content check on rpm gauge, Includes support for bootmod3 REV2 DirectPWM and FlexRay Controller.
Note: BM3 License & VIN must be activated before sending us your DME. BM3 CustomROM will not be able to load if your license is not pre-activated and VIN of your car is not in the BM3 user database. OTA Updates must be disabled in iDrive to prevent accidental tune removal, in which an Unlock process will be required again.
Those with previously unlocked DMEs prior to 3/18/25 will require a custom code upgrade with new V2 CustomROM in order for compatibility of bootmod3 REV2 DirectPWM and FlexRay Controller.
MHD Unlock
Unlocks and applies MHD’s latest custom code (map switch, anti lag, flex fuel, live tuning, Reflex integration, TCU limiter removal and much more) for all S58 vehicles. Before sending in your DME please connect to your MHD app and press the "Unlock Check" button to verify your software version is supported for MHD+ features, otherwise contacting MHD support is required.
Please Note Charge is per DME, meaning V8 Customers will be subject to two Unlock charges. Simply ship your DME/ECU to our Anaheim facility and we will prep/ship your DME to Finland for unlocking and return it to you, ready for tuning.
Vehicles Supported
BMW F87 M2, including Competition
BMW G87 M2
BMW F8X M3/M4, including Competition
BMW G8X M3/M4, including Competition
BMW F90 M5, including Competition
BMW F9X M8, including Competition
BMW F97/F98 X3M/X4M, including Competition
BMW F95/F96 X5M/X6M, including Competition
