MG Flasher502 - App Store

MG Flasher is a mobile tuning App designed for BMW/Supra vehicles equipped with B48, B58, S58, N63, S63, and N74 engines. Flashing is done by OBD using ENET Wi-Fi. Flashing time on ENET is only 15 - 20 seconds! Disclaimer: For off-road use only.
*Initial flash/ECU unlock with ENET Wifi will take approximately 4 - 6 minutes.
Flashing your BMW with MG Flasher unlocks many features:
. Custom Options - pick and choose performance mods, exhaust, cooling, torque options, as well as custom code options + more.
. Switchable Maps On-The-Fly - WORLD'S FIRST SOLUTION FOR BMW B58/B48 - through a simple combination of cruise control buttons you can quickly select between mapping, without the need to reflash the vehicle! Currently available for gen 1 and 2 B48,B58 and S58.
. Dynamic Exhaust Burble On-The-Fly - via a simple combination of cruise control buttons you can change the intensity of the burbles whenever you like! Currently available for gen 1 and 2 B48,B58 and S58.
. Flex Fuel - Automatically adjusts engine calibration to any ethanol blend, with smart blending logic for smooth power delivery and full integration with sensor or manual override control. Live ethanol display, cruise-control adjustability, and instant cluster feedback.
. Max Cooling On-The-Fly - With a simple cruise control button combination sequence, you can enable the option without reflashing the car! Currently available for gen 1 and 2 B48,B58 and S58.
. Torque Limit Adjustability - TCU 8HP Limiter Lifted for all platforms! Software calibration without the need for any transmission tuning or skewing the torque/load calculation model maps. This allows for accurate calculations, smooth shifting and no software trickery.
. Speed Limit Removal, Startup Roar, Torque by Gear Limiter available on select software
. Sport Gauges (HP and TQ) adjustable by user!
. OTS maps prepared by MG Flasher tuners
. Custom maps flashing - flash custom maps prepared by us or other tuners/users
. Logger - log real time data and plot it into graphs for troubleshooting and optimizing
. Cloud Log Viewer - Professional log viewing on logs.mgflasher.com
. Diagnostic - Read and clear BMW specific DTC's
. Reset various adaptations, restore coding
. CVN number (Checksum Verification Number) along with flashing counter stays untouched. This means our software will be virtually invisible to dealer level diagnostic tools
Supported vehicles:
BMW M140i/120i/125i/M135i F20/F21/F40
BMW M240i/220i/225i/230i/228i/M235i - F22/F23/F44
BMW M340i/318i/320i/330i/330e - F30/F31/F34/G20/G21/G28
BMW M3 - G80
BMW M440i/420i/430i - F32/F33/F36/G22
BMW M4 - G82
BMW 540i/520i/530i/530e - G30/G31/G38
BMW M550i G30
BMW M5 LCI - F90
BMW 640i/630i - G32
BMW 740i/740Li/730i/730Li/740e/740Le - G11/G12
BMW 840i, M850i - G14/G15/G16
BMW M8 - F91, F92, F93
BMW X1 20i/25i/28i -F48
BMW X2 20i/25i/28i/M35i - F39
BMW X3 M40i/20i/30i - G01
BMW X4 M40i/20i/30i - G02
BMW X3M/X4M - F97/F98
BMW X5 40i,50i - G05
BMW X6 40i - G06
BMW X5M/X6M - F95/F96

Version History Added
- Logger Beta for Gen 3 now also covers cars with the DME 960
- Supported models: X3 M50 (G45), X5, X6 (G05,G06), X7 (G07), 5 Series (G60)
- The Gen 3 logger is a beta; more parameters and models follow later

Fixed
- Long screen titles and the error message shown when the app can't start are now fully readable instead of being cut off 502 Oct 2 Added
- Logger Beta for Gen 3: datalogging now works on 2025 and newer M340i and M440i (G20-G26) with the Vitesco DME 961
- The Gen 3 logger is a beta; more parameters and models, including the X5, X6, X7 and 5 Series, follow later

Changed
- The Flash tab now lists the tunes on offer for Gen 3 cars, above a note that flashing them is not ready yet 501 Sep 24 Added
- The parameter list now checks your selection against your car's control unit and reports what it will not provide, pausing the datalogger while the list is open so it can ask

Changed
- The datalogger now starts with whatever your car's control unit will actually provide, instead of refusing to start when it will not give us part of what you selected
- A datalogger that fails to start no longer holds on to your car's connection, which used to leave the logger, diagnostics and parameter checks unable to reach the car until you restarted the app 500 Sep 14 Version 499

Added
- Polski (Polish) is now one of the languages you can pick on the login screen and in Settings, shown as "Polski - BETA" while the translations are being finalized

Version 497

Fixed
- The info (i) buttons on the diagnostics pages open their explanation popup again. Once the page had been left and returned to, tapping them did nothing at all
- Opening a page that shows a list, and returning to your car while the datalogger is running, no longer freeze the app on a blank screen
- The top of the screen no longer flashes white and drops the title bar into place when you start or leave the datalogger

Added
- Restored the fast connection to MG Flasher servers for users in mainland China
- You can now choose the app's language — English, 中文 (Chinese) or Türkçe (Turkish) — from a picker on the login screen and in Settings; the new language applies after you restart the app. Until you pick one, the app follows your device's display language when it is one of the supported languages, and uses English otherwise

Changed
- A command your car refuses is now reported as a failure instead of appearing to have worked
- A reading from your car can no longer be reported under the wrong name when its control unit asks for more time to answer
- The datalogger now stops with a connection message when it cannot read the VIN to confirm the car, instead of retrying forever while appearing to run
- Users in mainland China now stay on the fast connection to MG Flasher servers when they log in with email, not only with an SMS code
- Added a Back button on the support page, so you can leave it instead of being stuck there
- Pressing Back from a page that always returns you to one fixed screen no longer makes the next Back press skip a screen
- Permission changes made by an admin now reach your app during a normal sync, usually within the hour, instead of only after you sign out and back in
- The page you are leaving now slides away when you go back, which adds about a quarter of a second to each step back
- When you have remembered accounts, the login page leads with the one you used last and folds the rest behind "See more", and the email and password fields fold away behind a "Sign in with email" button alongside Google and Apple. Nothing is hidden if you have no remembered accounts: the form is then the only way in, so it stays open
- Your remembered accounts now sit in their own panel on the login page rather than loose on the background, so removing one shrinks the panel instead of rearranging the page around it
- On a device with no Windows Hello, fingerprint or screen lock, the offer to remember an account now says so: the account can still be remembered, but anyone who can use the device will be able to sign in with one tap. Devices that can confirm it is you are unchanged
- The Settings item in the side menu now shows a gear icon instead of the user icon
- The About page no longer shows the menu button twice
- Switching between the tabs on your car page no longer flicks through the tabs in between
- The pages you use most are now prepared in the background while you use the app, so they open faster when you reach them
- Going back is much faster (around half a second down to under a tenth) and keeps your scroll position and what you had on screen
- Improved page changes to be smoother (no blank gap, and a loading animation on pages that take longer to open)
- Switching between tabs on My Car now cross-fades instead of cutting over, and no longer flashes other tabs on the way
- The custom options page opens faster: your car's saved settings are now loaded while you pick a version
- The options page is now prepared for every version in the list, not just when flashing a stage, so it opens quickly whichever one you pick
- The car list no longer stalls while a car is waiting to sync... 499 Sep 7 Changed
- Check Support no longer stops with "Could not calculate valid DTCs" when the server has no DTC definitions on file for your car and answers with an empty list. A genuine failure to reach the server still reports the error
- Cars with the newest generation of engine control hardware now say so when you check support, naming your engine and listing which features work today and which do not, instead of asking you to contact support about a missing calibration. Flashing of any kind is listed as unavailable for now, and the notice can be dismissed for that car 496 Aug 5 Improved Femto unlock detection
You now stay signed in when the app has trouble loading its files on startup, instead of being asked to log in again
If the app can't start up properly, it now says so and asks you to close and reopen it, instead of silently dropping you on the sign-in screen
DTC descriptions now cover many more codes
The flashing options screen now opens faster
After an app update, the app now shows you what's new; browse the full changelog anytime from the About page
Fixed OTS maps failing to flash with a "Required files are missing" error that syncing would not clear
Fixed some buttons not responding to taps and lists not scrolling 494 Jul 27 ## 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 490 Jul 18 Added
- Support for MMS Flex boot-glitch with MGF unlock
- Logger parameter selection page:
- Names will marquee/scroll when too long
- Tuners can enable raw/OEM parameter names
Changed
- Logger page will have more responsive start/stop buttons
- Adjusted button text size when screen is small (doesn't get cut off anymore!)
- Flash for valid license holders fix
Removed
- Spoolstreet log upload support 489 Jul 15 Added
- Custom Code v0.5 support for newer S58 software versions
Changed
- Improved logger parameter selection UI/UX 488 Jul 11 Added
- Custom Code v0.5 support for newer S58 software versions
Changed
- Improved logger parameter selection UI/UX 487 Jul 2 Added
- New "App Files" page in the side menu for reviewing storage usage and sharing app logs
- Added MGFlasher logo visible on loading page and login page

Changed
- Fixed colors on flashing page
- Better communication handling on Live Control page when car is in motion
- Adjusted guard for Ethanol Live Control based on Custom Code version
- Added navigation to Sync Page if files are missing
- Live Control verifies user input and blocks other inputs while loading 486 Jun 25 ## Added
- Auto refresh car info on MyCar page when opened
- Pull down to refresh car info on MyCar page
- App version, last sync timestamp, and last car read timestamp is now subtly visible in MyCar page

## Removed
- Sign in with Facebook

## Changed
- Fixed an issue that could block stock map flashing on some cars
- Reminder to sync if licenses are missing on redemption
- Unlock detection for some older bootloaders
- Fixed sync issues when only Logger license is redeemed
- Fixed null exception on start of flashing process
- Corrected flashing progress wheel color
- Fixed "Live Control" page layout 485 May 6 Added
- Live Control page for configuring Custom Code features on-the-fly with real-time monitoring

Changed
- S58/S63 flame option availability indicator
- Automatically enable Custom Code Menu (CCM) when enabling any linked On-The-Fly option (Exhaust Flap OTF, Radiator Flap OTF, Valet Mode, Switchable Maps, Max Cooling)
- Improved ENET connection stability and error handling
- Map validity check exported HTML now contains flash history (custom code version, tune file name, etc.)
- Button styles on all platforms and new font
- Improved app flow during initial Check Support and Syncing
- Combine Missing Address popups into one (CC Diagnostics)
- Improved CCM button configuration page UX 483 Apr 23 ## Added
- Tuner tool: Validate map slot data (via Custom Code Diagnostic page)

## Changed
- Syncing process now removes Custom Base Maps for deprecated Custom Code versions
- Burble temperature increase option removed dependency for OPF delete
- Changed connectivity icon to display MGFlasher logo
- Fixed stock map verification performed before the Check Support is used
- Bug fix: Resolved crash on diagnostic menu
- Bug fix: Resolved "object reference not set" error after flashing 482 Apr 8 Added
- Tuner tool: Validate map slot data (via Custom Code Diagnostic page)

Changed
- User roles are now only visible to administrators on the User page
- Syncing process now removes Custom Base Maps for deprecated Custom Code versions
- Burble temperature increase option removed dependency for OPF delete
- Changed connectivity icon to display MGFlasher logo
- Fixed stock map verification performed before the Check Support is used 481 Apr 5 Added
- Stationary RPM Limiter
- OBD unlock support for older N63 bootloaders (0x5C11)
- Support for newer bootloaders (001.036.001) 480 Feb 24 Changed
- App should no longer ask for login on each app launch on some devices
- ENET frame handling is now more robust, should resolve some of the issues with logger freezing and flashing errors
- Fixed server connection bug 478 Feb 20 Changed
- Resolved issue with increased data usage of app on some devices
- Fixed problem with not all Units in Logger loading correctly
- Fixed N63 PPC unlock procedure 476 Feb 8 Changed
- Validate license on flash attempt 475 Jan 5 Changed
- Improved detection of unlocks 474 12/30/2025 Changed
- Fixed B16 Dealers Page

--PREVIOUSLY
Added
- Added Turkish localization

- B16 Engine support

Changed
- Reorganized ethanol flashing options
- Improved missing files warning before flashing
- Fixed handling of files during sync
- ECU Frame logger is back to live for troubleshooters 473 12/18/2025 Added
- Added Turkish localization

- B16 Engine support

Changed
- Reorganized ethanol flashing options
- Improved missing files warning before flashing
- Fixed handling of files during sync
- ECU Frame logger is back to live for troubleshooters 472 12/16/2025 Changed
- Speedup sync process

--PREVIOUSLY
Changed
- Initial car check support DTC Locators error should no longer occur 470 11/26/2025 Changed
- Initial car check support DTC Locators error should no longer occur 467 11/19/2025 Changed
- Speedup sync process
- App should no longer logout user during logger session on some devices
- Fixed scrolling issue 466 11/18/2025