A Windows-based PC (Windows 10 or 11 is preferred).
Once successful, Device Manager on Windows will display a new section: showing Qualcomm HS-USB Diagnostics 901D (or similar). Step 2: backing Up the Original EFS and NV Items
To help narrow down your research, please let me know if you are looking to fix a from a failed firmware update, or if you need help identifying diagnostic drivers for the Qualcomm X55 chipset. AI responses may include mistakes. Learn more Share public link zte mc801a change imei
The MC801A runs a stripped-down version of Android.
Attempting to rewrite the IMEI on a ZTE MC801A requires specialized software tools and low-level firmware access. A Windows-based PC (Windows 10 or 11 is preferred)
If the router receives an Over-The-Air (OTA) firmware update from the manufacturer or carrier, it may overwrite the modified partitions, restoring the original IMEI or locking the device out entirely.
To modify low-level data on a device like the MC801A, one would generally need to enter "Maskrom Mode" or "EDL Mode" (Emergency Download Mode). This requires shorting specific points on the device's motherboard physically. This process is incredibly risky for anyone without soldering skills and advanced knowledge of embedded systems. One wrong connection can permanently destroy the router. AI responses may include mistakes
Newer security patches rolled out by ZTE and carriers completely block access to the Diagnostic Port, making software-based modifications impossible without first desoldering the chip or rolling back to an older, vulnerable firmware version.
Log back into the web user interface (192.168.0.1) or use an AT command ( AT+CGSN ) to check if the device status page displays the newly assigned IMEI. Technical Risks and Troubleshooting
The ZTE MC801A relies on a Qualcomm Snapdragon X55 modem architecture. Modifying parameters deep within this hardware requires specialized environment setups and software tools. 1. Required Drivers and Software