Guys, my phone has turned into trash, or seeking help

Guys! Here's a problem. Yesterday has set itself a new stable firmware - 5.1.4.0A after the phone rebooted and hung on the OS boots. I decided to reinstall other version - now the phone is turned on, 20 minutes running and goes into an endless reboot (the logo MEIZU).
How can I escape from it? Flashing through recovery does nothing, it is possible as that through fastboot?

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