Step 01 – Download Checkra1n dmg file from the following button.
Step 02 – Connect the Mac and the device. Turn off filevault.
Step 03 – Drag and drop the Checkra1n into the Application folder.
Step 04 – Run Checkra1n app —> Click Start —> Click Next —> it will Spring the device —> start again —> Turn the device into the DFU mode (follow the instructions)
Step 05 – Wait until complete the jailbreak. It will install the Checkra1n application on the device homescreen after the jailbreak process.
Step 06 – Run the Checkra1n application —> Click on Cydia —> Install Cydia. Now Cydia is available on your device.