First, in the computer to download a good FlyMe 4 firmware, mobile phone through the data line and computer connection, will download a good FlyMe 4 firmware copy to the cell phone storage disk root directory;
Second, disconnect from the computer, and then into the Phantom of the MX3 file management, to find the copy in the FlyMe 4 firmware, and then click on the firmware upgrade, in the pop-up options, select "Clean data at the same time" click OK;
Third, a moment, you will see the Upgrade Guide page, select "I have backed up all the data", and then click on the bottom of the "clear data", and then click "Start Stare" can be done.
Four, then wait a moment, waiting for the charm family MX3 brush into the FlyMe 4.0 upgrade can be completed, when you see the FlyMe account login interface, then the upgrade has been completed.
After the upgrade is complete, the MX3 will automatically restart, into the boot interface, we can see the "Welcome to FlyMe 4" welcome interface, so far, the charm MX3 has successfully upgraded FlyMe 4.0.