Since "unlocking" a router can refer to two very different things (removing a carrier lock or gaining full administrative access), I have broken down the guide into the two most likely scenarios for the ZTE MC801A.
Once you have the code, follow these steps to remove the network restriction: ZTE 5G router setup guide - Imaginet FAQ unlock zte mc801a 5g router top
Required Information:
Recommendation: Only attempt this if the standard code-entry method fails and you are comfortable with technical troubleshooting. Common Issues & Troubleshooting "Invalid SIM" or "SIM Blocked" Since "unlocking" a router can refer to two
There are two primary ways to obtain the necessary unlock code: Contacting the carrier for an official unlock often