Unlocking a modem you own is in most countries, including the US (DMCA exemption for unlocking wireless devices), EU (Unlocking Directive), and India. However, breaking a contract with your carrier might incur early termination fees. Always unlock devices after your contract period ends.
Insert a (from a different network provider) into your Huawei modem. Connect the modem to your computer's USB port.
This tool generally does not work for Huawei smartphones or newer modems requiring a 16-digit unlock code. Google Play Legitimate Alternatives