BRT flasher

Flashing a ms4x tune

So you have your OBD2 interface cable, and a flasher.

What now!?

-The first step is to install the flasher and the cable’s drivers.

-Let’s test it. If you open the flasher with nothing connected to your computer, you’ll notice the red letters in the bottom left “looking for cable”. If you plug in the cable and wait several seconds and that message changes to “cable connected”, we’re in good shape. If it does not, please refer to the bottom of the page for troubleshooting.

This image has an empty alt attribute; its file name is file.jpg

-Plug the obd2 cable into your car and put the key in second position.

-Hit “Identify”. This should display the model and vin of your dme. Perform a full read by hitting the “Read Full”. Let the flasher name the file.

-Send us this file and await your file should be ready overnight. Or within a few mins at a given time if scheduled.

-To write the new full file (256k, 512k), go to the “write” tab, select “Write Full” and select the file we sent you. And wait a few minutes.

-To write a partial (24k, 32k or 64k), select “write tune”.

-After flashing

Go to the “Clear” tab and hit the “Clear DTCs” button to clear codes and “All Adapts” to reset all adaptions after each flash.

-key drill

-Stay away from the gas pedal for all of this.

-After the flash and adaptions are reset, turn the car off for ten seconds,

-turn the car to second position.

You should then hear a click from the intake manifold, this is your throttle body cycling and establishing learned values, it’s a good confirmation of healthy function.

-After you hear the click, wait another 5 seconds.

-turn the car off and wait a few seconds

Then crank


-When connecting a cable to windows, it should alert that the device needs drivers. This alert can be useful: when it asks for a driver location, bring it to the drivers folder in the flasher folder.

This can also be done manually by finding the cable in the device manager. Plugging it in and unplugging it should make it clear which device it is.

-If the cable isn’t being recognized by the computer, the problem is likely to be in either the cable or the usb port of the computer.

Leave a Reply