MX4Pro ROM 4.5.7I
(Correction of the calls and icons on home screen)
SAFETY NOTICE This ROM update can disfunction your device. You must have fully charged battery and backup your data before update!!! If you have problem with update please contact our service centre
VSP Data a.s.
First of all please backup your personal data!!! - when device is turned off so press and hold power + volume up button - release power key but keep volume down as soon as Meizu logo comes - you will see: "System upgrade" and "Clear data" - let’s choose "System upgrade" and also "Clear data" - connect device to PC over USB - there will be installation of standard USB storage named "Recovery" - Installer will do job automatically - wait for installer "Process status: Done" - remove USB cable and wait 3sec for mounting back shared drive to device - press Start on device - done and wait for installation of the new system(this can take up to 5min)