With new security and Android Nougat (7.0) we can't bypass with any solution with box or not.
Solution for it is downgrade to 6.0 and bypass it by "hand" :D
find and download A520FXXU2AQF1 firmware version and flash it!
if you can't find this file or hard to download you can use your box for support download, it faster than find on google.
After flash successful, u just bypass as old security, and it will work fine!
hope this help!