Huawei G8 no notifications on flip cover window?

[AC Question]

Huawei G8 no notifications on flip cover window

Hello,

I just bought a Huawei G8 device with a original flip cover.
Everything goes fine but the notifications of messages, sms etc... are not shown on the flip cover window.
The image that on the flip cover windows also can not be changed.
Anyone have this problem also?

Thank you in advance
JC