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7 Things to Know About the iPhone 7 iOS 12.3.1 Update

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The iOS 12.3.1 update is a small maintenance release and it could have a noticeable impact on your iPhone 7’s performance.

The iOS 12.3.1 update is performing well on our iPhone 7 models right now, but some users are running into trouble after making the move.

iPhone 7 users are complaining about a variety of iOS 12.3.1 problems including weird battery drain, Bluetooth issues, Wi-Fi problems, and issues with first and third-party applications.

iOS 12.3.1 fixes some lingering issues, but moving to the new firmware is still a bit of a gamble if you’re having a great experience on iOS 12.3, iOS 12.2, iOS 12.1.4, iOS 12.1.3, iOS 12.1.2, iOS 12.1.1, iOS 12.1, iOS 12.0.1, iOS 12.0, or iOS 11.

If you install iOS 12.3.1 on your iPhone 7 or iPhone 7 Plus and can’t stand it, you have the option to downgrade back to iOS 12.3.

Unfortunately, Apple stopped signing on older iOS 12 updates so those of you coming up from iOS 12.2 should be careful with this firmware.

In this guide to the iPhone 7 iOS 12.3.1 update we’ll help you make that decision. We’ve been testing the iPhone 7’s iOS 12.3.1 update looking at key areas like battery life, connectivity, and speed. We’ve also been monitoring feedback from other iPhone 7 and iPhone 7 Plus users.

Let’s start with our impressions of the iPhone 7 iOS 12.3.1 update and then we’ll take you through the other important things to know, right now, about the latest version of iOS 12.

iPhone 7 iOS 12.3.1 Impressions & Performance

iPhone 7 iOS 12.3.1 Impressions & Performance

We've been using iOS 12.3.1 for several days now and we haven't noticed any huge differences between it and iOS 12.3 in terms of performance. That's a good thing. 

iOS 12.3.1 still feels a lot faster than iOS 11 did on the iPhone 7. Animations and transitions are crisp and apps still open a whole lot quicker than they did on the previous operating system.

We haven't noticed any significant slowdown when using the keyboard or when pulling up our Notifications or Control Center. 

Even little things like transitioning from a phone call back to the home screen, are faster with iOS 12 on board. 

Battery life is stable and we haven't noticed any weird drain during our time with the software. Battery life appears to be normal. 

We've been able to connect to several different routers (including eero) and we've successfully paired the devices with various Bluetooth devices (headsets, speakers). 

At this point, given what's on board, most iPhone 7 and iPhone 7 Plus users should install the iOS 12.3.1 update today. 

For more feedback about iOS 12 and iOS 12.3.1, please take a look at our list of reasons to and not to install the upgrade today

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22 Comments

22 Comments

  1. Jason

    11/28/2018 at 10:06 pm

    After updating my iPhone 7 Plus to the iOS 12.1 I get no service or it’s extended

  2. Frances

    12/26/2018 at 7:20 am

    I have a 7 plus and can’t make or receive calls after this update. It keeps saying call failed. It was fine before

    • Raymond

      05/07/2019 at 2:22 pm

      I am having the exact same problem. I have to use my phone for work and now I can’t.

      • Fatorapa

        05/28/2019 at 6:02 am

        Yes, me too! The solution:
        • mute your iphone
        • put mode “do not disturb”
        • turn off “blue tooth”
        Restart
        Done.

  3. Brittany

    01/09/2019 at 8:40 am

    My iPhone 7 is doing really good on iOS 12.1.2 I just got this iPhone yesterday this is my first iPhone and I love it I think the iPhone is my favorite phone I been with android for several years and they always got slow

  4. mohammad

    01/27/2019 at 10:29 pm

    updating to ios 12.1.3 kill my iphone 7

  5. Nadia

    01/29/2019 at 11:46 am

    Updating to IOS 12.1.3 messed up the app store. I can’t update any app without it asking me to confirm payment. Doesn’t matter what option I pick for payment, it doesn’t work. I can’t download any new apps either. It’s very frustrating.

  6. John

    02/06/2019 at 7:13 pm

    I am new to iPhone 7 Plus upgraded from phone 6. (Both run ios12.1.3)

    Huge difference experience on 7+ is that after using for sometime (5 ~ 30 minutes or maybe more within a session) keyboard starts to lags, and don’t responds to my touches. It makes typing seriously frustrated. Jaggy scrolling. Like the phone is busying other background tasks.

    To overcome this, I need to press power button to lock the phone, then unlock it and it behaves normal again to continue what I was doing.

    As for iPhone 6 I didn’t encounter this problem at all before.

  7. Loren

    03/27/2019 at 7:43 am

    Will iOS 12.2 fix the issues I have with my microphone? iOS 12.1.4 caused my microphone not to work. Now I am unable to make calls, use Siri, record videos with audio etc. I have a iPhone 7

    • miho

      06/19/2019 at 9:17 pm

      same here. got any solution for this problem?

  8. Joan

    04/17/2019 at 8:28 pm

    Since installing this update, my VM is not working. Right now, it says my vm is full and I have no VM, no recent calls, nothing in the deleted vm. Of course, all says to contact my carrier but my sister is having same problem and her iPhone is newer and her carrier is different. What the heck!!!

  9. Joan Scheuffele

    04/17/2019 at 8:31 pm

    Since installing this update, my VM is not working. Right now, it says my vm is full and I have no VM, no recent calls, nothing in the deleted vm. Of course, all says to contact my carrier but my sister is having same problem and her iPhone is newer and her carrier is different. What the heck!!!

  10. Alix Jones

    04/24/2019 at 2:49 pm

    Since installing 12.2 my volume on watching a video doesn’t work, I cannot use phone asa phone ie it rings I answer but can’t hear anything & other person can’t hear me it doesn’t work in car speaker via blue tooth can’t retrieve voicemails not impressed have had iPhones for years but this is putting me off & I never thought I’d see the day

  11. Tammy

    04/28/2019 at 4:34 pm

    When I turn my phone on silent mode it does not vibrate. Ever since the new update my phone stopped vibrating altogether!
    While looking things up in Google or Safari I get no images… even those unwanted adds. NO images! So, if I look up directions and don’t understand them, I’m screwed… there is no images of the directions I SHOULD be able to see for an example!!

    • Thara

      07/03/2019 at 7:02 am

      When call receive my phone also not vibrate..I thought it’s hardware issue..I bought this very recently..when I go to settings and check with vibrate patterns same thing happening ther also..NO Vibrate

  12. Erika

    05/07/2019 at 3:39 pm

    This update killed my phone and I now cannot restore it. I’m stuck staring at a screen that says plug into iTunes and go to support.apple.com. :( Very unhelpful. Guy at the phone store just wants to sell me a new one instead of helping me.

  13. Subbu

    05/09/2019 at 7:25 am

    I think iOS 12 updates are also not yet gives use best interface. So You can’t Jailbreak your iDevices due to this new interface. So many of us can’t able to Download paid apps and games for free. Some you don’t need to Jailbreak your iDevices to get premium apps and games when you have third-party App Stores like Appvalley, FlekStore, and HipStore. You can get those third-party app stores from OM Geeky Blog. Thank you so much. You should also see more on https://omgeeky.com

  14. Lisa

    05/31/2019 at 7:41 pm

    Since installing the update I have no cell service. they sent me a replacement that forced me to update and same thing. DON’T UPDATE!!!

  15. shannon

    06/01/2019 at 11:13 am

    How do I unistall this 12.3.1 update. I do not like it

  16. Hedda

    06/02/2019 at 1:17 pm

    I can now not open snaps and messages. The notifications are there, but when I go on the app there’s nothing. I’ve tried to turn the phone off, log out, nothing works. This annoys me.

  17. Prabha Sumi

    06/25/2019 at 8:16 am

    Hai am using IPhone 7 and it’s currently supporting 12.3.1. The issue it call ( slider to attend the call ) doesn’t work including WhatsApp call .

  18. Edgar Franco

    07/12/2019 at 7:01 am

    My iphone 7 stopped ringing on phome calls and messages after upgrading to 12.3.1. It just vibrates. I’m losing important phone calls and messages. I checked ring volume and it’s ok. I’m even thinking of buying an Android phone if that issue is not fixed soon.

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