cannot recover data from or unlock my phone Lenovo Z2 plus
There are couple of methods to unlock your device. It depends on you whether you want data from you internal storage or you want data from your applications.


If you want data from your internal storage, you can just download Aroma File Manager and flash it from your boot manager in your android device. Aroma File Manager let you browse your Internal Storage and can let you copy and paste file from your internal storage to external storage like SD card.
If you want your android device back to normal state without loosing your device Storage you can simply delete the Gesture.key or pass.key file from your root folder /data/system/gesture.key which you can browsed with the help of Aroma File Manager.


Conclusion is that you need Aroma File Manager to have access to your android device storage which can help you to get all you data back to you even if you don't know your password.

MAIN POINT IS THAT THE ABOVE STEP WILL VOID YOUR ANDROID PHONE WARRANTY.