I bought my cellphone a few days ago and after two system updates, it started to take a while to open. The screen goes black asking for the unlock, and after a few good seconds the Zenfone logo appears and, then follows the statement: "Android is starting". All those devices weren't like that when it received the first update. It's Is there any way to revert this update, which bugged my phone? I can't turn off my mobile that this bug happens.
