Huawei has recently launched E5878 Mobile WiFi router in United Kingdom, which is locked to different networks. As you might already aware that, since it is locked to a particular network, you can not use another network provider SIM in it. To unlock you need 8 digit correct NCK code.
How to unlock Huawei E5878 MiFi WiFi Router :
1. Make sure your E5878 Router Gateway Hotspot is connected to constant power supply.
2. Just insert a non acceptable Network sim on yourE5878. (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 the device on. It will display “Invalid SIM” because you have used another network providers sim.
4. Now just establish a WiFi connection to E5878 with your PC / IPAD / IPHONE / Android Device.
5. Connect your E5878 with PC and got to or and login to your device’s dashboard at or . Go to Advanced Settings – SIM Settings – Unlock Device – Enter Unlock Code – Click on Apply.
Open your Settings – Dial-up – Unlock SIM card – Enter 8 digits unlock code in your E5878. Click OK and the device will reboot to display the new network.
Now your E5878 Hotspot is unlocked forever.
Note : Unlock code is not free. Don’t try to insert wrong codes into your E5878 , otherwise E5878 will be locked permanently. You can purchase from any server or contact email@example.com to get unlock code for your Huawei WiFi / MiFi router in only 6 US$.