Version : ios11.2 beta2
Since I bought this iPhone 7 in the beginning of July ,the power drain problems has been confusing me.
In the beginning ,the version was on ios10.3.3 ,and the battery dropped from 100% to 50-40% after 14 hours’ standby.(not even turn on the screen ,but with 4G network turned on)
Odd to say,if I shut it down when fully charged ,the battery still only remained 40-50% after 14 hours.
Besides,the drain of power had no difference after I updated the software to ios11.2 beta2 a few weeks ago.
Does anyone have the problem like me?
Thanks in advance.
Since I bought this iPhone 7 in the beginning of July ,the power drain problems has been confusing me.
In the beginning ,the version was on ios10.3.3 ,and the battery dropped from 100% to 50-40% after 14 hours’ standby.(not even turn on the screen ,but with 4G network turned on)
Odd to say,if I shut it down when fully charged ,the battery still only remained 40-50% after 14 hours.
Besides,the drain of power had no difference after I updated the software to ios11.2 beta2 a few weeks ago.
Does anyone have the problem like me?
Thanks in advance.
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