SigmaKey is a Windows software for manipulating smartphone firmware. Similar to CIUX Mobile IMEI Unlocker, it allows you to unlock mobile devices and restore original IMEI numbers.

How to use

It is recommended to charge the phone to at least 50% before proceeding with the unlocking. The next step is to switch on the device and call *#*#2846579#*# to activate factory mode. After that users are instructed to connect the smartphone to the desktop or laptop computer via USB cable and wait until all system drivers are fully installed.

You can choose the Hisilicon option in the main window to begin the unlocking operation. It is possible to select the required section and click the PCUI button to start the process. After several minutes a confirmation window will pop up to indicate that the operation is finished.

Additional capabilities

This application allows users to work with mobile devices based on the Broadcom, Qualcomm and Mediatek processors. Flexible instruments for unlocking smartphones are provided.

There are tools for generating and reading codes, upgrading firmware and creating backup copies of important data. You can check the RAM condition and evaluate overall device performance as well.

Features

free to download and use;
offers you instruments for unlocking mobile phones;
it is possible to access and recover original IMEI numbers;
users can check device performance and test RAM integrity;
compatible with all modern versions of Windows.