If you have an Huawei Dongle and Router that needs unlock code, flash code, hash code etc you can get generate the codes yourself from the following links.
1. Huawei Modems (Old Algo most IMEI starts with 35-) V1 - Huawei Unlock Code Calculator ...
I had same issue with my Xiaomi Redmi 3s prime as i can not get it to connect to my PC but got it fixed .
1. enable developer option and enable USB debugging
2. reinstall MTP driver on windows using wpdmtp.inf in windows folder while your phone is...
sure you can unlock all huawei new algo routers and modems here. Huawei router and modem unlock code calculator
Thanks me later for the link