Siri periodically causes 100% battery drain on iPhone 12 Pro when everything Siri is turned off.

This is a persistent subject, it seems, but does anyone know why Siri periodically causes 100% battery drain on my iPhone 12 Pro when every set for Siri is turned off. This has happened last year and again this year. It stopped for a while but after the last update a month or so ago it started again for a few days after the update and, intermittently thereafter. Just recently, I charged my battery to 100% just over two days ago, and did not use it all or even pick it up (it is set for cellular), and when I looked at it again, battery was down to 77%, with one minute screen time, and100% of usage by Siri. I have everything else turned off, like Location Services, Background App Refresh, Mail Fetch, etc.

iPhone 6, iOS 12

Posted on Apr 23, 2022 11:19 AM

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Apr 25, 2022 1:30 AM in response to Nicholas_B2

Of course I have tried that--there are many other suggestions from others on forums. This Siri problems started again recently after IOS update 15.4, before that it was in remission. I believe the update before that, 15.3, I discovered, sent my Photos taken since the update to iCloud Photos, even though I had never set up iCloud or turned anything on. I discovered this because one suggestion of the numerous suggestions on various forums said that the Siri battery drain problem was solved when they turned Siri off in iCloud. When I signed in to iCloud, I saw the numerous things were turned on, including Siri, and there were 49 photos there since February 2. I had to go through numerous steps to shut off Siri in iCloud and disable Photos, and worry that it would delete the ones on my iPhone but I think they were already full resolution saved on my phone, but the explanation and warnings about this and how the settings work, are very confusing. I do not want everything interconnected where files can be downsized and/or deleted depending on what you do elsewhere. Also Siri usage has come down quite a bit--it went down to 1% in the last 24 hours, to now up to 12%, again, but this possiblly has to do with me having to readjust the settings in iCloud for a second time. Siri should be 0%.

I have another question. The first time I turned things off in iCloud, I signed out. When I went back to check on the issue about photos, I saw that most things I had turned off had been turned back on again, even a couple more things, which I had to turn off again. So that time I did not sign out of iCloud, just left everything turned off as it was. But I should be able to sign out and have things remain off shouldn't I? In other words, were they only turned on when I signed back in because of the default behavior? So the question is if I sign out of iCloud, does everything I turned off remain off? Trying to find this out as sort of like trying to find out if the refrigerator light really goes out when you close the door.

Apr 25, 2022 6:17 AM in response to Red and Blue

Red and Blue,


If you continue to have issues you should reach out to Apple Support to further assist as Nicholas_B2 recommended.


Regarding iCloud, check out the article here for information on what occurs when iCloud is turned off: Sign out of iCloud on your iPhone, iPad, iPod touch, Apple TV, or Mac


If there's an issue when signing out of your account or iCloud features, Apple Support can assist with that as well. For any new questions be sure to start a new post to the Apple Support Communities.


Take care!


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Siri periodically causes 100% battery drain on iPhone 12 Pro when everything Siri is turned off.

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