Hi Carlitosp, Maybe you have to turn on the Developer Options by tapping 7 times on the Buildnumber? If the option still not appears, you have maybe to go back to an earlier version of Marshmallow. I went back i guess to one of the first versions...
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I had the same problem. Had to buy a new s7 edge because the other one broke down. And i just did automatically all the updates so in the nougat i had no galaxy labs anymore (because i forgot to turn it on in Marshmallow) But i found the solution and it costed me a couple of hours to find it out haha. You can flash your s7 / s7 edge back to the latest version of Android 6.0 or 6.1 (just the version before 7.0). 1. Check on your phone which firmware you need by dialing *#1234# 2. Download the firmware and odin and look for a tutorial to flash with odin. 3. When your flashing with Odin, make sure you use all the files that comes with the firmware (BL + AP + CP + CSC file). 4. When you are back in the marshmallow firmware, go to software info and tick 7 times on Buildnumber to activate the developer options. 5. Go in the Setting-menu to the "Advanced options/setting". All the way down in the menu you will find Galaxy Labs and the option to see all the apps on your homescreen. 6. When you turned "all apps on homescreen" on, you can now update to Nougat via OTA and you will keep the option to turn App drawer on or off. Samsung customer service did not help me with it and they did not even know about Galaxy Labs. Really bad service, but i got it anyway. Good luck!
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