Terrible iPhone 7 Battery Drain on Standby

[iMore Question]

Last night I went to bed with 29% battery remaining and left it unplugged all night. With my iPhone 6 I would wake up with around 20% remaining in this situation however this morning after seven hours of sleep I woke up with only 11% remaining. Then after using the phone for about 30 seconds it completely turned off and was dead. In the settings I looked at what was draining the battery the most and 41% (which was by far the highest percentage) was allocated to Siri. I've never used Siri since I bought the phone last week and I have the "Hey Siri" function turned off. Does anyone know what this Siri drainage could be from?

 

[shadowboxer8]

Has to be a glitch because Siri shouldn't be draining any battery if you have " Hey Siri" function turned off. I would try a hard reset or if that doesn't work do a factory restore.

 

[Larry Cook1]

Hard reset should fix it. On iphone 6 hold power button and home button together until you see the Apple logo. Let go and let phone reset.

On iphone 7 you hit power button and volume down button together.