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Hoping the experts on MacInTouch can give me an answer:

I have an iPhone SE I use only for emergency and travel. I've shut down most functions, including any use of Siri (or so I thought.) When my phone battery drained completely overnight, I checked the Battery app activity in Settings and Siri use was 100%. Does anyone know why Siri, after being shut off everywhere I can find in Settings, could still be active and drain my battery? Is there any way to shut Siri down completely? Thanks in advance for any info and/or suggestions.
 


Hoping the experts on MacInTouch can give me an answer:
I have an iPhone SE I use only for emergency and travel. I've shut down most functions, including any use of Siri (or so I thought.) When my phone battery drained completely overnight, I checked the Battery app activity in Settings and Siri use was 100%. Does anyone know why Siri, after being shut off everywhere I can find in Settings, could still be active and drain my battery? Is there any way to shut Siri down completely? Thanks in advance for any info and/or suggestions.
if Siri is the only application running, it is 100% no matter if it is the culprit. But there might be background activities which are not shown. Under macOS 10.15, the phone mounts on the desktop, and I have seen activities in Console (took screen shots but they are on my home computer).
 


I have an iPhone SE I use only for emergency and travel. I've shut down most functions, including any use of Siri (or so I thought.) When my phone battery drained completely overnight, I checked the Battery app activity in Settings and Siri use was 100%. … Is there any way to shut Siri down completely?
Try the Settings > Siri & Search, scroll down and check each app to be sure "Siri & Suggestions" is Off.

Note: Over time, I've added apps and those defaulted to Siri & Suggestions "On".
 


Try the Settings > Siri & Search, scroll down and check each app to be sure "Siri & Suggestions" is Off.

Note: Over time, I've added apps and those defaulted to Siri & Suggestions "On".
Thank you for the suggestion. All apps are Off. I tried to shut off Siri everywhere and am not sure where it's sneaking by me.
 


Thank you for the suggestion. All apps are Off. I tried to shut off Siri everywhere and am not sure where it's sneaking by me.
An update: Siri is turned Off everywhere I can find. After sitting overnight unused, my iPhone battery this morning was down to 35%. Battery setting showed Siri using 75%, lock screen the remaining 25%. I'm still on iOS 12.4.1. All apps are closed, I have auto download off. Very frustrating to find Siri/Apple communicating somehow/somewhere without my knowledge or permission.
 




Thank you! This has to be the issue, it's the only thing I haven't checked, I'll definitely know tomorrow. Thank you again.
In the recent past I had a similar problem with Siri running the battery down overnight with nothing else running on my iPhone 8. I often use dictation (speech-to-text) with Messages. I found a work-around (but no explanation) on-line that suggested playing any song in your Music app as the last thing before you stop using your phone for the night. Apparently Siri stops listening when you play Music. Siri never ran the battery down overnight when I followed this process. On those nights when I didn't, Siri might or might not cause a problem. However, I haven't had this problem in months and I'm now running 13.3.1. I don't know if it was fixed by an iOS update or not, but it's not a problem for me now.
 


Thank you! This has to be the issue, it's the only thing I haven't checked, I'll definitely know tomorrow. Thank you again.
I spoke too soon. iPhone was down to 23% this morning, with Siri using over 50% of battery usage. Next step is to try M. Stallcup's suggestion ("...playing any song in your Music app...").
 


I spoke too soon. iPhone was down to 23% this morning, with Siri using over 50% of battery usage. Next step is to try M. Stallcup's suggestion ("...playing any song in your Music app...").
In addition, if you have not already done so, reboot your iPhone, as that should clear cache memory.
 


In addition, if you have not already done so, reboot your iPhone, as that should clear cache memory.
Finally! This was the final piece of the puzzle, no more rapid battery drain. To recap, I turned off Siri for every app; I turned off Dictation; last but not least, I rebooted the phone. Battery drain was 7% over the last 24 hrs, contrasting with ~75% drain the previous 24-hour periods.

Thanks to all of you for your suggestions, the MacInTouch community is the best!
 


Finally! This was the final piece of the puzzle, no more rapid battery drain. To recap, I turned off Siri for every app; I turned off Dictation; last but not least, I rebooted the phone. Battery drain was 7% over the last 24 hrs, contrasting with ~75% drain the previous 24-hour periods.
Thanks to all of you for your suggestions, the MacInTouch community is the best!
A note on iPhone rebooting: My wife's iPhone 5s battery was graphing a 45-degree straight descent from the moment it came off the charger with no usage whatsoever for weeks. We tried everything, including rebooting - no luck. After worrying at it for a few more hours last night, I unplugged it, did an f'-it reboot and went to bed. It was still 100% this morning, and going strong.

What my wife noticed was that this time the reboot created an entry in Settings > Privacy > Analytics & Improvements > Analytics Data. The prior reboot did not. Perhaps it is worth checking for that log entry after any reboot, and trying again if it's not present?
 


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