Zain, Saudi Arabia has launched B520s-93a CAT 6 router which supports LTE FDD / TDD / DC-HSPA + / HSPA + / UMTS / EDGE / GPRS / GSM LTE networks. It delivers its energy through an internal battery of 3000 mAh. The SMS send and receive panel along with support for command codes added the features and features of this modem. Support up to 64 users simultaneously. The maximum download speed of this product is 300 Mbps and upload is 50 Mbps, which is significant. We are glad to inform that this router can now be unlocked to use all the SIM.

How to unlock Zain B520s-93a

Note: The router needs to be unscrewed and a USB cable has to be soldered for unlocking. Pay only if you can unscrew and solder the USB cable as given in the picture below.

How to unlock Zain B520s-93a

Solder the USB cable as given in the picture above and pay. If you don’t have the USB cable you can cut it from the old mouse, charger etc.

How to unlock B520s-93a Zain 4G Router

Download and Install Drivers from here. If you are facing problems in driver installation follow this link.

Important: If you are on windows 10, Download the file given below, extract it and run it. Don’t forget to restart the computer after executing this file.

Phase I:

Download  Zain B520s-93a Unlock App and open it. Go to User Login (Default username and password is unlockmyrouter).

How to unlock Zain B520s-93a

After login, shot the points using the tweezer or wire as given in the picture above. After you shot it, you will find a new com port in the device manager as shown below.

How to unlock Zain B520s-93a

Once a port is generated, choose the Apply Loader option and click Submit. You will be asked to enter the bootloader code. Enter the exact code you have received after payment and click OK.

How to unlock Zain B520s-93a

The loader will start installing and you will be able to see the progress in the bar.

How to unlock Zain B520s-93a

Soon, you will get the message “Loader Installed Successfully”.

How to unlock Zain B520s-93a

Wait for one minute and check the Device Manager again. It should show two com ports instead of one now as given in the picture below. If your device manager is not showing two ports at this stage then you might be missing appropriate drivers.

How to unlock Zain B520s-93a

Now, It is the time to install the firmware. Choose Flash Firmware option and click submit. You will see the installation process will start. Leave the PC now and don’t do anything else till the installation process is over.

How to unlock Zain B520s-93a

Wait for around 10 minutes. This time may vary depending on your PC. Wait for the “Flashing Completed Successfully” message as given below.

How to unlock Zain B520s-93a

Wait for two minutes, Unplug the power cable to switch it OFF, Insert SIM card and power it ON. Once Zain B520 router is completely switched ON, Select unlock option and press Submit. Enter the code and press OK.

How to unlock Zain B520s-93a

Your router will restart to apply the new settings. If the router has not restarted, unlock it again by repeating the last step.

How to unlock Zain B520s-93a

The unlocking charge for a single device is 10 USD.


The unlimited unlocking license is also available for this router. For details, kindly contact us at  [email protected]

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