Please tell us some basic information before asking for help:
Model Name: Zenfone Live L2 ZA550KL
Firmware Version: WW_Phone-15.07.2007.57
Rooted or not: Not
Frequency of Occurrence: Always after the last security update and system optimisation.
APP Name & APP Version (If your issue relates to the app): Mobile Manager App
After the last security update and system optimization a few months ago. When the zefone was off and I wanted to turn it on, I had to press the power button for a while for about 8 to 10 seconds and it was very different from the previous update where I only needed to press the power button for less over 4 to 5 seconds. And there is anothe issue in mobile manager app, after cleaning cache the mobile manager app is stuck and I can't out.