Dear user,
Thanks for reaching out to us.
E5788 is a Consumer device. This Community is intended for Enterprise network devices.
We have Huawei Community support (https://consumer.huawei.com/en/community/list/?forumId=10014), where you can get the answer online and also a service hotline for each country or region.
You can get the regional hotline number via https://consumer.huawei.com/en/support/hotline.
Thanks!