Experience the true Cat 4 LTE speeds without network restrictions.
Unlocking the Huawei B311-221 allows you to use the router with any network provider worldwide by removing the carrier restriction. The most reliable method remains IMEI-based unlocking
Select the downgrade .bin file you downloaded. Do not interrupt the power. The router will reboot twice. This takes about 5 minutes.
: The interface should automatically prompt you for a "SIMLOCK Code" or "Unlock Code." Enter the NCK code provided by your carrier. Detailed steps for this process are available on the Three Ireland Community portal. Important Technical Notes
Once you have the code, insert a SIM from a different carrier. The web interface will prompt you for the code. Enter it to permanently unlock the device. 2. The Professional Unlock Service
When prompted for a SIMLOCK Code , enter the official 8-to-16 digit code provided by your carrier or a professional service like DirectUnlocks . Method 2: Professional Remote Unlocking
