Disconnect the modem from the internet and close all related management software.
For newer models (like the B315 or E5577), you can often unlock them without external software: Insert a foreign SIM card. huawei modem unlocker v5 8 111 new
The package arrived in a padded envelope with no return address. On the sticker, in small block letters, someone had written: huawei modem unlocker v5 8 111 new. Mara laughed at the absurdity of it — a software version as if a relic had been mailed like a secret recipe — and slid the envelope under her laptop like she’d received a message meant to be decoded. Disconnect the modem from the internet and close