Free

Details

  • Released
  • Updated
  • January 27, 2020
  • July 18, 2026

Features

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About

This app allows for advanced ECU tuning and feature unlocking for specific BMW and Supra engines via OBD and Wi-Fi. It offers on-the-fly map switching, custom options, flex fuel integration, and diagnostic capabilities for enhanced vehicle performance. Designed for off-road use only.

Custom performance modifications
Switchable maps on-the-fly
Dynamic exhaust burble control
Flex fuel integration
Torque limiter adjustment
Speed limit removal
Diagnostic DTC reading/clearing
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What's New in MG Flasher

490

July 18, 2026

## Added - You can now press Enter to sign in from the login screen - Buttons, links, icons and list rows now highlight and animate when you hover or press them - Reset Adaptations: many more adaptations to choose from, each with an in-app description, plus search - Diagnostics & Custom Code: tap any option to see what it does and when to use it - Aurix DMEs with a 3rd party unlock are now recognized and can flash (SWFL) files - DTC code descriptions have been enriched - Support for MMS Flex boot-glitch with MGF unlock - Wave 3 DMEs carrying the MG Flasher bootloader unlock can now flash (SWFL) files - Logger parameter selection page: - Names will marquee/scroll when too long - Tuners can enable raw/OEM parameter names ## Changed - Tapping "Edit" on a turned-off flashing option now tells you to enable it first - Logger page will have more responsive start/stop buttons - Adjusted button text size when screen is small (doesn't get cut off anymore!) - Fixed Sync Needed warning not disappearing from Cars list after syncing the car - Fixed the app hanging for up to a minute on startup when on a Wi-Fi network with no internet (e.g. a car's ENET adapter); it now loads right away using your cached session - Fixed the logger failing to reconnect to the car after the ENET adapter was unplugged and replugged; it now rediscovers the adapter automatically instead of needing an app restart - Fixed the datalog Chart tab staying locked behind "please upload to Logs Cloud first" even after you had uploaded the log

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User reviews

Hard to use, BM3 way better

Just had a horrible experience with mg flasher ancient interface that it seems MHD clone it. But after I switched to Bootmod3 everything with the power is good now. Shouldn’t have wasted my time

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Terrible service

Never have been able to use any tune. They attempted to fix it once then ignored many follow up emails. They don’t want to deal with their own software issues if it takes time or costs them a refund.

The best interface for B58’s

Plain and simple, this is the best interface for the gen 1 B58. I looked at MHD and Bootmod3 and this one was the easiest to use for me. Their customer service is great as well.

Awesome platform

I mostly switched over to this platform for the antilag options but I began to love it even more because they allow you to play with so many more perimeters than the other platforms allow for. Definitely love it so far

FAQ

What does MG Flasher do?

MG Flasher is a mobile tuning application designed for specific BMW and Supra engines. It enables users to perform ECU flashing, unlock custom features, and adjust various performance parameters through an OBD connection using Wi-Fi. The app is intended for off-road use only.

What are the key features of MG Flasher?

Key features include custom performance modifications, on-the-fly switchable maps and exhaust burble control, flex fuel integration with automatic calibration, torque limiter adjustments, speed limit removal, and the ability to read and clear BMW-specific DTCs. It also supports custom map flashing and data logging.

How much does MG Flasher cost?

Based on the provided information, the app is available for free. There are no mentions of in-app purchases or subscription fees for the core functionality of the application.

What vehicles are compatible with MG Flasher?

The app supports a wide range of BMW models equipped with B48, B58, S58, N63, S63, and N74 engines. This includes various series like M140i, M240i, M340i, M440i, M3, M4, 540i, 740i, 840i, M8, and several X models. Specific engine codes and chassis designations are listed in the app's description.

Can I use MG Flasher for daily driving?

No, MG Flasher is explicitly stated to be for off-road use only. Using the app for tuning on public roads may violate local regulations and is not recommended.