How to use a Huawei E398 4G USB-Stick with Mikrotik OS 6.34?

Hello,

I have used the Huawei E398 4G USB-Stick in an older OS-Version one year ago. It works with the PPP-Client Setup very well.
Now I use this Huawei E398 with an other Mikrotik Board and an actual Firmware 6.34 and it dont work.
Is for this a special setting necessary?
Which USB stick is recommended with the acutual OS Version?

Thanks!

This is not OS but hardware problem - You need more USB power that means powered USB hub must be used or something else