Hi, I need help as to how to fix the optimizing app 1 of 1 at startup. the phone is a galaxy J7/SM-J700M 2016 android version 6.0.1. I am desperately in need of help in solving this issue. I have tried everything I found online tips or ways of solving it. I tried factory reset, wipe cach. I have also taken it to my carrier for repair, they had solved the issue, but it only lasted for 30 minutes or less. it is the same as with the factory reset and wipe cach methods. the problem would return after it doses an automatic update.
the carrier technicians said the problem is Facebook and messenger, so I disable the Facebook and messenger app, the issue still persists. Is there a fixable solution to the problem? My cell phone works great, it's the green screen with the two spinning gears with the message 'optimizing 1 of 1 app'. I am on a budget so a new phone is out of the question. please help. Thank you