Unlock Zain E5577s-321 (21.327.62.00.375)

In Saudi Arabia, Zain has updated  the firmware of E5577s-321 router and now it sold with version 21.327.62.00.375 and WebUI 17.100.18.00.375. This is highly secure and doesn’t allow the user to change the firmware, also the number of attempts to enter the code is also zero. We have developed a special app which can unlock your E5577s-321 Zain router safely. The same APP can also be used to unlock the Zain router having firmware version 21.200.05.00.375 and WebUI 17.100.09.00.375.

How to unlock Zain  E5577s-321 – 21.327.62.00.375

Install Drivers from here. If you are facing problems with driver installation follow this link.

Download Zain E5577s-321 Unlock App and open it. Go to User Login (Default username and password is unlockmyrouter).

After successful login, Click on “Auto Detect Device”, your device information will get displayed.

Note: If you get the message connection failed or login failed, Download this file, extract and run it. It will enable the Com-Ports and will open Device Manager, check if there are two Com ports. If the ports are present, Click Login/AutoDetect. If you can’t see two ports, you have to fix the driver issue.

After successful detection, Choose Flash Firmware and click the submit button. It will ask you to enter a code. Type the code here, which you have received from unlockmyrouter.com and click OK.

Your Zain E5577s-321 router will restart and the firmware installation process will start automatically.

Wait for the installation to finish.

Your E5577s Zain router is now unlocked and will work with any SIM card. Restart it to apply the new settings by choosing Restart Device option and click Submit.