Your router is not in "USB Mode." Repeat the "Shorting/Jumper" step.
Even with new firmware, some versions require a final software unlock: Open the DC-Unlocker client. huawei b315s-607 unlock firmware
For detailed step-by-step guides, users often refer to technical communities like Geekzone or video tutorials on platforms like YouTube . Your router is not in "USB Mode
Ensure you have installed the "Huawei Handset Drivers" and are using a high-quality USB cable. huawei b315s-607 unlock firmware