DC Unlocker is a popular software tool used to unlock a wide range of devices, including modems, routers, and smartphones. Developed by a team of experts, DC Unlocker has become a go-to solution for users looking to remove restrictions on their devices and gain full control over their hardware.
AT+ZCARDLOCK="unlock_code"
Most 4G modems start as (mass storage) before switching to serial/modem mode. Use usb_modeswitch : dc unlocker linux