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: Over-the-air (OTA) updates are the most reliable method, as carriers push specific optimizations for their 5G bands.

The ZTE MC801A is a high-performance 5G indoor CPE (Customer Premises Equipment) designed for ultra-fast connectivity using the Qualcomm SDX55 platform

Most MC801A units on the market are branded by network providers like Three (UK), T-Mobile, Vodafone, Telstra, or Zain. Carriers modify the firmware to: Lock the device to their network (SIM locking).

Global/Nordic unbranded versions. These are highly sought after because they offer the most features out of the box.

If you want advanced features like or Bridge Mode but are afraid of flashing firmware, you can use JavaScript hacks or custom scripts. Carrier firmware often just hides these menus in the browser interface rather than removing them from the software code. The JavaScript Band Locking Trick