The (4G LTE router) is often carrier-locked (e.g., to Telkom, Vodacom, MTN, etc.). Unlocking via firmware modification removes the network lock, allowing any SIM.
Unlocking isn't just about switching carriers; it's about maximizing the potential of your hardware: Hot LTE CPE router B315 Huawei B315s-607 huawei b315s-607 unlock firmware
Huawei B315s-607 is a popular 4G LTE router known for its stability, though many units are sold carrier-locked (e.g., to Spark, Zain, or Orange). Unlocking via firmware is a common community practice to enable its use with any SIM card. Firmware Unlocking Overview Unlocking the Potential of Huawei B315s-607: A Comprehensive
Your router is not in "USB Mode." Repeat the "Shorting/Jumper" step. Use serial console or JTAG to access bootloader,
This is used if the web interface is restricted or the router is bricked.