If code path fails, try a trusted tool (DC Unlocker or similar) as next step:
Unlocking your Huawei E578592C allows you to use local SIM cards while traveling (saving roaming fees) or switch to a better data plan with a different provider. huawei e578592c unlock
Unlocking your Huawei E5785-92c frees your device to work with any compatible network globally. If code path fails, try a trusted tool
Find this 15-digit code on the device sticker under the battery or in the router's web interface. If code path fails