If your goal is to use a different SIM card in your ZTE MC801A, changing the IMEI is the wrong (and illegal) path. Instead, look for Network Unlocking.
Changing an IMEI is illegal in many countries (including the US, UK, EU, Australia, Japan, and others) unless:
Valid reasons only:
Penalties can include heavy fines, imprisonment, and being blacklisted from mobile networks.
Hundreds of users on forums (4pda, XDA, Reddit) have attempted to change their IMEI on firmware B13 or higher. The result? The router becomes a paperweight.
Why? ZTE implemented an anti-tamper mechanism. If the NVRAM hash check fails: zte mc801a change imei
Specifically for the MC801A: The 5G synchronization data is tied to the original IMEI signature. Changing the IMEI often kills the 5G NR connection entirely, leaving you stuck on 4G.
The ZTE MC801A uses Qualcomm Snapdragon X55 5G modem with firmware that is heavily locked down. Methods that worked on older 3G/4G routers (like AT commands via USB) generally do not work on this device because:
ZTE implements Secure Boot on these devices. This means that from the moment the device powers on (the PBL - Primary Bootloader), every piece of code that loads is cryptographically signed and verified against hardware fuses (QFuses) blown at the factory.
If the bootloader detects that the modemst partition has been tampered with or the signature is invalid, the device will refuse to boot. This makes "hex editing" the partition impossible without exploiting vulnerabilities to bypass the chain of trust.
Some early batches of the MC801A had a hidden developer page. This door has been closed in recent firmware. If your goal is to use a different
If accessible, you might find a field labeled “IMEI customization.” This is extremely rare and reports suggest it was removed in mid-2022.
The International Mobile Equipment Identity (IMEI) is a unique 15-digit number assigned to every mobile station. It is effectively the hardware "social security number" of the device.
Attempting to alter this number is fundamentally an attempt to deceive the carrier network.
The ZTE MC801A is a high-performance 5G router, and while users often seek to modify its IMEI (International Mobile Equipment Identity) to bypass network restrictions or plan throttling, this process involves significant technical and legal risks. Core Technical Challenges
The IMEI is a unique 15-digit identifier hardcoded into the device's hardware by the manufacturer. Modifying it is not a standard feature of the ZTE Web Admin Interface. Carrier Policies: Some carriers are legally required to
Hardware Storage: The IMEI is typically stored in a protected memory area (NVRAM).
Firmware Barriers: Most carrier-supplied routers have locked bootloaders or custom firmware that prevents unauthorized access to the underlying operating system.
Specialized Tools: Modification usually requires advanced software like QPST or Chimera Tool to interact with the device's Qualcomm modem. Legal and Practical Risks
Before attempting any modification, consider the potential consequences: Web Admin Interface of the ZTE MC801A 5G Router