I have updated android but there are some problems; the battery discharges when the tablet is closed, no more 64-bit games before I go, no battery charge reaches 55 percent after which it stops .... you destroy the updated tablets. .. I want to go back to Android 6 .... Update are not good, and I am not the only one who has problems with apdate ... why not give me the opportunity to go back to android 6? YOU WILL DESTROY TELEPHONES, TABLES with update...