Recently, I have shared the unlocking procedure of customized Airtel’s Huawei E5573s-606 mobile WiFi router of India. Leading carrier of Nigeria, the Spectranet is also selling the same model router in the country, which also comes with zero (0) attempts left for unlocking, means the router comes with customized firmware. However, finally, I find the solution through firmware upgrade and device successfully unlocked.

Some details of E5573s-606 Spectranet device:

Device name: E5573s-606
IMEI: 8660790********
IMSI : 6214010********
Hardware version: CL1E5573SM
Software version: /
Web UI version:

Before proceeding with firmware upgrade of E5573s-606 Spectranet MiFi, download the following required files:

1. Huawei E5573s-606 Firmware (general) and Huawei E5573s-320 Firmware (general).

2. Huawei hilink drivers from and Huawei mobile partner from this link. (Install all drivers before proceeding with steps, it will not harm anything).

3. Firmware code you can generate from Universal Master Code tool or comment with model and IMEI to get it.

How to unlock customized E5573s-606 Spectranet MiFi WiFi router of Nigeria :


1. Change the default SIM with another network provider and connect your Huawei E5573s-606 Spectranet MiFi WiFi router to PC or laptop via its default USB cable.

2. Make sure that your router is charged at least 50%.

3. Extract the zip file Huawei_E5573s-606_Firmware_21. and run P711S-E5 update_21.

4. It will ask a password. Use firmware code as password.

5. Input the correct firmware code and wait till finish process.

6. Now, the device will again start installing drivers by itself.

7. If it is not detected by PC due for drivers problem then update the drivers manually through COM port (You have already downloaded Huawei Hi-link drivers and Huawei Mobile Partner).

8. Now, download DC unlocker from here or any another source (latest version).

9. Detect the device under DC unlocker.

10. Go to the end of the result.

11. Now type “AT^NVRDEX=50503,0,128” (without quotes) and press enter from the keyboard.

12. Now, it will show NV codes in hash format. Mail in in a notepad format. Hash code will be converted into the unlock code and after receiving the payment it will be mailed.

13. Now, extract Huawei_E5573s-320_Firmware_21. file in a folder.

14. Run the firmware setup file again. During this period, it will not ask the password again.

15. Wait till firmware successfully installs in the device. Now again, your router will start installing drivers automatically.

16. You will notice that all light are turned ON, including battery light and network light.

17. Open web-browser (Internet Explorer) in PC and browse for (default IP of the router is changed).

18. Login to the router panel (username and password as admin).

19. Here, you will see, your device has 10 unlocking attempts left.

20. Just enter correct unlock password in a router and your router will be unlocked.


Note: Don’t try to enter any wrong / free unlock code into the router, otherwise it will be locked permanently.

Unlock code charge for international people is only 6 USD which you can pay through PayPal button of this website. If you are not able to process by yourself, just made the payment and mail me back with details. I will do it remotely for you.

Update : Now newer E5573s-606 which is locked to Spectranet Nigeria, coming with firmware version 21.315.01.00.1158 and WebUi / software It can be unlocked with normal procedure, hence you have to use boot shot method. Unlocking charges will be still 6 USD only.


  1. Thank you for your time, but after installing the two firmware update driver…
    My E5573s-606 Spectranet MiFi WiFi is not turning on again and all am seeing here is just a single green light permanently on…..

    Please get back to me as soon as you get this comment… Thanks

  2. would you be able to help me unlock mine remote ASAP if i make payment now? i use a mac and cannot run some of the software above


  3. Huawei E5573s-320
    Imei: 866162027253039
    Hardware version: CL1E5573SM01

    Software Version: 21.316.03.00.200

    Please i need unlock solution for the above mtn customized Huawei 4G Mifi

  4. Thank you for your time, but after installing the two firmware update driver…
    My E5573s-606 Spectranet MiFi WiFi is not turning on again and all am seeing here is just a single green light permanently on….
    IMEI 866079020990344

  5. I’m done with the firmware upgrade. But stuck at DC unlocker. After entering
    AT^NVRDEX=50503,0,128 and I press enter. What I get is error. I’m sure I typed it correctly and I’ve used different versions of the unlocker. What do i do please. I need to unlock the modem today.