I have already provided the unlocking solution of the Huawei E5730 router. If your device has customized firmware, which means the modem is not asking you for unlock code, you need to change the firmware before proceeding with unlocking steps.
How to Change the Firmware of Huawei E5730 Power Bank router?
- Connect your E5730 to the PC with its default USB cable.
2. Let it open the browser with the default address.
3. Disconnect the internet, close the browser, and disable the WiFi (if your PC / laptop has WiFi).
4. Now download the correct Huawei E5730 firmware and WebUI update.
Note: For unlocking the device, always use universal firmware.
5. Unzip it into a folder.
6. Run the firmware / WebUI update.
7. It will ask you for a password.
8. Input here firmware code as a password.
Note: Comment below with the model and IMEI to get the firmware password free.
9. Now, wait till the finish.
10. Now, your device has unlocked firmware.
11. Proceed with the above unlocking link to unlock the E5730.