Meizu m2 note otg

Hi all,
I bought a 64 gb usb stick with usb and usb micro adaptors.
It works fine on my tablets running Android 4.4 but isn’t recognised by my Meizu M2 note Phone.
Is this a known problem, is there something in settings that turns on the usb otg?
Thanks for your help,

Meizu m3s

To use otg you need to go to the file manager app and there should be a pop up “Open USB Device now?”

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