Instructions kinda aren't needed, except if you use iOS/iPadOS/MacOS. But here are them. In the booting screen (first part) just wait, at the lockscreen (second part) just click anywhere to unlock the phone, click on that white circle with 6 dots to open the app library, then click anywhere in that white square that appeared after you clicked the white circle to open calculator (which will crash as it is just a test of some stuff from Android 6.0), click in that big circle with white outline to go back to the normal homescreen (to leave app library).
Guys, PLEASE READ THESE NOTES AND ALSO THE INSTRUCTIONS, DON'T COME TO COMMENT IN MY PROJECT ASKING "OMG WHY CANT I OPEN THE CALCULATOR", I AM NOT THAT GOOD ON PROGRAMMING, IF I WAS LIKE THE KING OF PROGRAMMING I WOULD RECREATE THE ENTIRE ANDROID WITH INSTALLABLE APPS, PLAY STORE, UPDATES, WEB BROWSER, CONTACTS, GMAIL, PHOTOS, SETTINGS AND EVERYTHING THE ORIGINAL ANDROID HAS!!!! Also if you ask why the white circle is too big, I had to make it bigger because i couldn't adjust the navigation bar position in the app library part.I made everything by myself, by the first, using no tutorials, so, no credit needed here. Now the notes starts here. NOTE: This is only a test that will never be finished on trying to make Android 6.0 stuff. If you want to complete it or fix some stuff, feel free to remix it, except give credits to me. Also, the calculator doesn't work as it is just a test of some stuff.