Method one
1, go to Meizu official website to download the latest firmware;
2, long press the power button and volume button, let go after the phone vibrates;
3. At this time, connecting the mobile phone to the computer will recognize a storage disk, copy the firmware to the storage disk, and click Upgrade to use it normally.
Method 2
Bring your mobile phone, invoice and warranty card to the local Meizu authorized service experience center, and ask the staff to check and repair.