Step 1: Restart your mac, and then hold down Command + R to boot into Recovery Mode after your Mac begins to restart.
Step2: When the OSX Utilities appears, click the Utilities menu, and then choose Terminal.
Step3: Type “csrutil disable” and press Return. The system will respond you. You can restart your mac, and then back to Cisdem Data Recovery.
Temporarily disable the SIP is easy and safe. Once you have completed the data recovery, you can enable it.