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Apple Watch keeps rebooting

So, about 2 weeks ago, my Apple Watch was low on battery. I hooked it up to charge. I noticed that it kept rebooting. Next day I put it on and the battery ran out in less than 2 hours. Did some digging and reset it to factory settings. No problems until today. It ran out of battery and as it’s charging it’s rebooting itself. Once fully charged I put it on. Now, it’s rebooting itself without being on the charger. I really don’t want to have to set it back to factory settings again. Any help?

Posted on Sep 21, 2017 2:59 PM

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Posted on Feb 5, 2018 5:27 AM

Here is what I did last week Wednesday evening that so far has been helpful.

  1. On the iPhone app Watch - Notifications: Disable the Notifications Indicator and under MIRROR IPHONE ALERTS FROM:, change all notification sliders to the left (Off). (Did not change any of the factory apps, left them at Default after a recent pair as a New Watch attempt.)
  2. Restart both the iPhone, and then the watch. I had read about others thinking that this was related to Notifications and some mentioned Instagram (which I had also removed before starting any of this without any changes). I observed this for a couple of hours while working and at this point it was rebooting every view minutes or so while connected to the charger. I removed it from the charger and it still continued to reboot many time. It was time to try one more time as I had an appointment at the Apple Store to drop it off and ship it to be looked at.
  3. On the iPhone app Watch, select the watch to be unpaired from the iPhone and un-pair from the iPhone. Wait for it to un-pair before continuing.
  4. On the watch it will be prompting to place near a phone to be paired, forced a local reset on the Watch by pressing the Side Button and acknowledging to reset all. (Do not remember the exact wording or clicks, it does not allow anything else to be done though since it is not paired to a iPhone.)
  5. Once the watch is ready to pair again, placed it next to the iPhone and then paired it again. I followed the normal pairing of the watch and restored the recent backup (right before I started the process) to restore all the settings. (I was a little hesitant, although I figured I did not have anything to lose.)
  6. After it has finished pairing and was running, the battery was at about 82%, it had been rebooting several times before I started this process and was done at about 9:30-10:00pm.


After this process, I wore it to bed and when I got up it was still at about 60% or more. I wore it until about noon I decided to charge it while at 31%. It was fully charged in about an hour and I put it back on. It did not reboot once all day, and worked normally with minimal battery drain. The next morning the battery was at about 30% when I charged it at about 8:30am.


It has been like this since Thursday morning with not one reboot and also has not been draining. On Saturday night, I re-enabled the Notifications Indicator, I am planning to start enabling notifications to see if anything causes a problem. Yesterday I did not get to place it on a full charge before leaving in at 6:15am, it was at about 90% and it was a very active day. At about 11:00pm last night is was at 17%, placed it on the charger for about 30 minutes or so, it was at about 91% when I took it off to wear it to bed. Got up at 6am and it is still at 80% at 8:30am. Not one issue since doing all of this.


I plan to start enabling the notifications that I might use and leave the others off. I also have not reinstalled Instagram yet. I might do that first to see what it does.


I hope that someone else might try this (I know it takes time, although if it works or helps Apple to find a root cause it is worth it) and see a similar result. I have been dealing with this since updating the middle of December to WatchOS 4.2. I am 100% sure that it is some software thing (I work in software and root cause analysis all the time), although it not widespread, it has to be some certain combination or scenario that causes it to happen.

55 replies

Feb 7, 2018 6:42 AM in response to Jexlar

Another update since my reply on the 5th, I have re-enabled some of the notifications that I typically use/need and have not had any issues at all. This morning the battery was at nearly 30% after 21 hours and not one reboot that I am aware of. Charged it and have had it on for an hour or so and it is still at 100%.


I have an app to add back onto my phone and will update in a couple of days again.

Feb 21, 2018 1:41 PM in response to Jexlar

I have a 1Gen apple watch, yesterday I did the update 4.2 something...(saddly I never pay attention) and started having the rebooting problem. Before that I never had a problem at all with it, my husband has one and I will advice him not to use the update. Yesterday it was my daughter birthday and we gifted her a brand new apple watch that came with the new software installed.

I have turn off all the notifications for the watch, but it is still rebooting when my phone gets a notification. Do you turn the phone notifications off to?

If I'm not able to solve this problem (the watch not being able to receive notifications) it renders itself useless to me and after reading so many people with the same problem I don´t think I will try to replace it for a new one.

My phone is an apple 7 (just in case this makes a difference).

Feb 21, 2018 2:02 PM in response to Trota5mundosIG

Hi there,


I had to turn notifications off in the watch app under 'Mirror iPhone Alerts From:'. It has been going on a bit for me so I was able to narrow it down to my issue being with the Instagram app. If you have Instagram enabled on the watch to mirror phone notifications, I would try turning that one off first. When I turn the notifications off in the watch app, it doesn't take effect and stop booting right away, sometimes it can take up to a day.


The Apple Team is aware of the problem and are currently investigating it. Myself and others have been providing logs and feedback to help out so eventually a fix will become available. Hopefully soon 🙂

Feb 21, 2018 2:51 PM in response to newfiechic

after 2 week with Apple support and give them same file from my Apple Watch 2 with last update 4.2 They change it for me to new watch and I never update it to 4.2 and I don’t get rebooting issue my watch is in 4.0 and I will see if next update will fix the problem with you then maybe I will update it but really it’s very bad experience with this update 4.2 and I never use my watch because of rebooting issue

Feb 22, 2018 4:35 AM in response to Trota5mundosIG

I would suggest trying what I wrote above in this thread. I have not had an issue since doing the steps noted above on Feb 5th. I have also reinstalled the Instagram app (with notifications to a locked phone off and no sounds, honestly do not need them all the time) and have not had any issues either. I did not change anything related to the watch and mirroring the notifications.


In my opinion and analysis, it does not appear to be the version itself, simply something that does not go well in the upgrade to the phone with some settings. There are too many out there with this version with no issues. My experience also shows this.


I hope that this helps you and someone else.

Feb 22, 2018 4:38 AM in response to newfiechic

It is interesting that you have gotten to that step with Apple. They wanted me to send in my watch, instead I dug in and based on the items that I have read and some experiments to get it working again. There is something related to notifications, although I have pretty much all back on with no issues. You can see my steps and results in this thread.

Feb 22, 2018 5:08 AM in response to SKova

I have pretty much done what you have done a few times without resolve. I have no issues at all until I mirror my phone notifications for Instagram and it stops after I turn it off. All other notifications are on. The odd thing is, that it can take up to 2 days for the reboots to start after re-enabling the Instagram mirrored notifications and up to 2 days for them to stop after I disable the notifications. But it is definitely that one for me.


The issue is pretty widespread with many having the same issue from my research on different sites and forums. That is how I learned it may be a notification issue after I had read about others disabling notifications and having the reboots stop. My husband had been in contact with Apple before discovering this and in the logs it showed it was Instagram causing issues and they had initially thought it was the Instagram app itself. I had the opportunity to send the watch back after speaking to them at that time but decided to keep on researching since I knew it wouldn't solve the issue.


In your response to Trota5mundosIG you are saying that you have your phone notifications for Instagram off? After you have done all your steps have you had Instagram notifications on to see if it starts rebooting? I'm curious, I you know you said you don't need them on all the time, but do you think that maybe turning them off may be caused the reboots to stop?


The Apple engineering team had reached out to me after I been active in this post. I've been having to turn on Instagram mirrored notifications wait for the reboots and then capture logs and send them in to them so they can check them. Others have been also.

Feb 22, 2018 5:10 AM in response to Trota5mundosIG

I ended up going to the Apple Watch app and turning off every notification I could find as well as uninstalling every app rendering my watch a HR monitor, step counter and timepiece. I have added some social media apps, their notifications, my texts and some other things over time and continue not to have any rebooting. Since I was also getting rebooting using my husband's nonproblematic watch while mine was at Apple (they did nothing), I was able to know for sure that it was a setting or settings on my phone.


When my watch was at Apple, they reached out to me for more specific information and I sent them the link to this thread and went into detail on my specific issue. When they sent my watch back, it said that they diagnosed the battery and it was determined not to have any issue. LOL I never said anything about the battery other than the rebooting eventually got so bad it drained it within a few hours. They should be paying us for fixing their problems!

Mar 1, 2018 9:49 AM in response to Jexlar

My watch just today started an endless reboot cycle for no reason.


I noticed that the Watch was not notifying me of any texts today and it seemed really slow and weird yesterday.


It will not allow me to access anything on the watch the reboot time is so fast. I removed it from the iPhone and rebooted the iPhone and nope - no way - nothin'. The reboot of the Watch takes a LONG time (but that is normal I think) and the watch is actually warm, which it never is - and once it comes on - you cannot even navigate to the settings to reset it - it's rebooting again.


I have filled out a warranty request, (still under the year) but I will say this.


It SEEMS that all was fine until I loaded the most recent version Watch OS two nights ago.


And... it was not very long ago that Apple put out an update for the iPhone because my iPhone ( and more) was doing the exact same thing!


iPhone and Watch both running fastest builds as of this post. I believe this is buggy software or some combination of my iPhone 7 128GB (also still under warranty) and this Watch V2 and software.


Not happy....

Mar 2, 2018 7:57 PM in response to Ramzaldabi

There is a recent update that came out last weekend for the Apple Watch and iPhone. I updated my iPhone first with the new iOS, then updated all the apps. Next, I ran the Apple Watch update from my phone.


All is working now and no more crashing or rebooting is happening. I also, turn off all the app notification that I did not need especially for old apps. The culprit is somewhere in an outdated/incompatible app on your phone and the notification services. Start by turning off (disable) all notifications on your watch, using the Watch app and see if the issue persist. If it doesn't, there's your issue, problem and focus for a fix. If it still crashes after doing that, then it is definitely something wrong with the watch. Hope this information helps. The new iphone/watch update pretty much solved the issue for me. No more restarting...Hallejuah!!

Mar 9, 2018 2:36 AM in response to idonald

I had the updates done on release day but hadn't tried enabling Instagram (the troublesome app for me and it is always up to date) until I seen your post. It was fine for a few days but the reboots started again this morning. It always takes 3-4 days for the reboots to start kicking in again. Very strange. So the updates hadn't been a fix for me, unfortunately.

Mar 30, 2018 3:49 PM in response to Ramzaldabi

So. I had contacted Apple and I even received the box to send in the watch.


It kept rebooting. It was so bad that I had timed it and knew the window I had which was about 60 seconds to try to catch the cycle. Being stubborn and a former jail break unlock guy before it was easy I managed to shut down the watch between the reboot loop. It took me about 4 tries to catch it. Once it started from a successful cold boot it stopped the loop. I immediately deleted all non native installed apps on the watch. And I have disabled the auto install of apps that extend to the watch. Since then it’s been fine. And that’s the way it will stay. Al the “other” apps can stay on the phone.


That was my fix.

Apple Watch keeps rebooting

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