Default (Q) Rooted but unknown debug password.

Hi, I've just brought a phone from my service provider which is new on the market where I am based and so hasn't much info posted on line. I've rooted it easy enough (Smartfren Andromax U3 (inos i7c) rootable by framaroot 9.1) but I still need to find the password to turn usb debugging mode on. Does anyone know of a generic way of finding the debug password with a Terminal Emulator please? Or if not maybe some other way?

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