Hi9 Plus can not enter to Deep-Sleep

Android Tablets Hi9 Plus
1

Hello,

My Hi9 plus(red button) consumes battery rapidly(0.8% / 1h) during sleep. Similar reports are found on the web by searching google.

I used to think this is the performance of this tablet, but the other day I noticed that the device never enter to deep-sleep during screen-off. In other words, CPU is always on. Some battery monitor apps such as AccuBattery reports that.

Is this an intended behavior? I did factory reset, but this behavior did not change.

2

Is your keyboard attached? I’ve heard from some that this can cause battery drain, but I’m not sure.

3

I never use the suspension unless it is going to be for a very short period of time, but, to what you comment, I think that, when having LTE with calls, the behavior of the tablet should be the same as that of a cellphone, not never go to deep sleep, and should consume just as a cell phone does in the same situation Then I will see if in the system options there is something that can modify this behavior when no SIM card is used, but with it, I think it should behave as described

4

Is your keyboard attached? I’ve heard from some that this can cause battery drain

Thanks, after detaching the keyboard, the device began to enter Deep-sleep and battery consumption became under 0.1%/1hour, which was reported by AccuBattery.

However, I think this behavior is not common among other keyboard attachable tablets. How can I disable the keyboard when pushing the sleep button?