How to Use OTG on Elephone U Pro?

Recently,many Elephone users have trouble in using OTG on Elephone U Pro.Then,please follow the steps:
Before you use it,please open it in the Settings-Accessbility-OTG enable.
Then,pleas intsert the type-C USB on your phone directly.
Note:Do not use adapter to connect the USB,which will make it useless.

Any question please refer to Elephone Official Website:http://www.elephonestore.com/elephone-u-pro-4g-lte-smartphone-128gb-blue.html