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Z3 Tablet Compact doesn't have "Charging Optimization", why?

Message 1 of 2
Message 1 of 2

Z3 Tablet Compact doesn't have "Charging Optimization", why?

Subject says it all. I have a Z3 phone and a Z3 Tablet Compact. The Android AND firmware are the same, but under "settings > about > status" I don't have "charging optimization", which I would pretty much like to use.


Why is that? 

Message 2 of 2
Message 2 of 2

Re: Z3 Tablet Compact doesn't have "Charging Optimization", why?



My Z5 does but Z3 Tablet Compact doesn't...