| Method | Cost | Time | Safety | Permanent | |--------|------|------|--------|------------| | DC-Unlocker trial | Free | 10 min | Very safe | Yes | | Balong Flash firmware | Free | 30 min | Moderate (risk of brick) | Yes | | Hidden reset trick | Free | 5 min | Very safe | Sometimes | | Paid code ($15) | $15 | 5 min | 100% safe | Yes |
Using generic or poorly modified firmware can wipe out your router’s NVRAM partition. This permanently erases the unique IMEI number and MAC address, preventing the device from connecting to any cellular network ever again. Safe and Legitimate Methods to Unlock Huawei B311-221 huawei router b311221 unlock firmware free