1. Make sure your Mobile WiFi E5251 (E5251s-2) Huawei router is fully charged.
2. Just insert a non-acceptable Network sim card on your Huawei E5251s-2. (You have to use another network provider sim, which is currently locked to).
3. After changing the another network providers sim on your Huawei WiFi / MiFi, switch ON the device. It will display “Invalid SIM” because you have used another network providers sim.
4. Now just establish a WiFi connection with E5251 to PC / IPAD / IPHONE / Android Device.
For the best results, I prefer Windows computer for unlocking.
5. Connect the Huawei E5251s-2 with Windows PC and browse for 192.168.8.1 and login to device’s dashboard with admin/admin credentials.
or, Go to Advanced Settings – SIM Settings – Unlock Device – Enter Unlock Code – Click on Apply.
6. Once the correct / NCK code entered, the device will be rebooted, if not then reset it manually.
Now your Mobile WiFi E5251 (E5251s-2) Huawei Router Gateway is unlocked forever. Create a new profile according to the SIM and enjoy the unlocked device around the world.
Note: Don’t try to insert any free/wrong codes into your Huawei E5251 (E5251s-2) router, otherwise it will be locked permanently.