Moved, your topic and corrected your title.
Hello, welcome to this forum. Please have a look at the firmware section for your device and also post Q&A concerning your device in the appropriate section.
Link to the Firmware section: https://meizufans.eu/forum/category/57/meizu-mx5-firmware
If you require information concerning the upgrade process, have a look at the F.A.Q. of this forum.