The ZTE ZXV10 B866V2 is a popular LTE CPE (Customer Premises Equipment) router, widely distributed by Internet Service Providers (ISPs) across various regions, particularly in Asia, the Middle East, and Africa. While reliable, these devices often come "carrier-locked," meaning they are restricted to using SIM cards from the specific ISP that issued the hardware.

Attempting to flash firmware or short-pin the board carries a risk of "bricking" the device. It is recommended to back up existing configurations if possible. step-by-step video for your specific provider?