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8 Things to Know About the iPhone 6s iOS 12.3.1 Update



The iPhone 6s and iPhone 6s Plus have moved to iOS 12.3.1 and Apple’s latest update could have a big impact on your device’s performance.

Apple’s released a new version of iOS 12 and the company’s iOS 12.3.1 update comes with a short list of changes.

Most people will want to download the iOS 12.3.1 update right now or in the near future, but some people might want to wait for the next version of iOS to arrive.

While many iPhone 6s users are having a great experience on iOS 12.3.1, others are running into problems. Some of the issues are small bugs, others are impacting performance. You can’t predict problems the problems you’ll encounter so you’ll want to be careful.

If you’re moving up from iOS 12.3, you get the shortest list of changes. If you’re running an older version of iOS on your iPhone 6s or iPhone 6s Plus, your iOS 12.3.1 update will be much bigger. That’s because the features and fixes from the updates you skipped are baked into your version of the update.

In this guide we’ll take you through all of those changes so you aren’t caught off guard. We’ll also taking you through the problems plaguing the iPhone 6s and iPhone 6s Plus after the release of iOS 12.3.1, show you how to fix these issues, walk you through what to know about the downgrade, and what’s coming next from Apple.

First, we want to start with our impressions of the iPhone 6s iOS 12.3.1 update. We’ve been using the software on the 4.7-inch model and we like what we’ve seen thus far.

iPhone 6s iOS 12.3.1 Impressions & Performance

iPhone 6s iOS 12.3.1 Impressions & Performance

We've been using the iOS 12.3.1 update for several days now and the update is still running smoothly on our iPhone 6s models. 

Overall, iOS 12.3.1 feels as fast as iOS 12.3 did. Apps open up quickly, sharing options still open much faster than they did on iOS 11, and multitasking is fast and fluid.

Animations and transitions are snappy and we haven't noticed any significant lag during our brief time with the update. The iPhone 6s is several years old, but you wouldn't know it with iOS 12.3.1 on board. 

Battery life seems normal right now and we haven't run into any significant issues with Wi-Fi or Bluetooth connectivity. We haven't noticed any major issues with our core applications either. 

At this stage, iOS 12.3.1 is performing quite well and given what's on board, we recommend it for most iPhone 6s users.

If you want some additional feedback about the software, take a look at our list of reasons to and not to install iOS 12.3.1 right now



  1. Ashutosh

    03/01/2019 at 9:04 pm

    I am facing problems in my iphone 6s with 12.1.4
    Problem 1 .. if i silent my mobile it indicates again and again of vibrate/silent mode

    Problem 2…cellular problem … cant make call fast you have to wait 5..6 second more

    Problem 3 …apps started crashing

  2. Melissa McDonald

    04/07/2019 at 5:27 am

    I’ve just updated my phone to the 12.2 iOS but now it says my phones Touch ID is unable to work I went into settings to try get it working but says it failed every time I tried, I reset the phone but it’s still unable to connect Touch ID so I’m pretty pissed about that it’s annoying and I don’t know what to do


    04/23/2019 at 1:38 am

    The 12.2 is giving me cut/paste issues I never had before. If you let’s say bold and/or underline text in the Notes app, and you cut/paste it in let’s say the body of text for an email, it not removes the bold/underline formatting but puts HUGE spaces in between each line; it’s not exactly double spaced with PARAGRAPH markers because you can’t delete the blank line in between. I the tried cut/paste of one three-line of text that had no paragraph markers and it took fine in spacing but no bold/underline, and the line underneath were all double spaced. If I cut/paste the text in ANOTHER Note, it pastes fine, but not in emails. I don’t thing formatting ever was able to be pasted in the Text app and I’m guessing that was normal, and it never double spaced it, and it appears to still be that way now. I can’t imagine what it is that won’t let me cut/paste with formatting and the regular single spacing and why it’s making these big spaces after this update!

  4. alhassan Timbo

    05/15/2019 at 7:25 am

    I am facing serious problem with my iphone 6plus since i updated my IOS
    PROBLEM 1-It’s freezes regularly now
    PROBLEM 2-My finger print is not working

    • Gaurav Patel

      06/04/2019 at 12:24 am

      Same problem occurred with my iphone6 too.

  5. zippr

    05/26/2019 at 12:11 pm

    I recently purchased a 6s. I think it had 9 point something. Now, it is at 12.1.3. Updates are automatic, right?

  6. techiek7

    06/13/2019 at 12:29 am

    I restored iOS 12.3.1 firmware on my 6s. The UI is now much smoother and battery life also increased slightly. Best OS upgrade till date.

  7. Stokes

    06/14/2019 at 5:18 pm

    Latest update turned mt daughter’s phone into a brick with a video screen demanding factory reset.

  8. Marlene Stec

    07/01/2019 at 2:19 pm

    12.3.1 screen freezing my 6s plus. It’s constant. I’m pissed as hell. A tech friend says you have to wait for the next update and hopefully it will be addressed in that.
    Really? That’s all Apple’s got? No patch? No oversight!
    Apparently this is limited to the 6 and 6s plus.

  9. Divya Prakash

    07/03/2019 at 9:11 am

    My iPhone 6s plus has gone totally weird with touch screen after update! I hardly managed to do reset! Now, touch works some times and stops sometimes! I’m managing to call people by siri and receive calls by headphone button!!! This update has made MU phone just piece of junk!! I hate apple shit!!

    • Divya Prakash

      07/03/2019 at 9:13 am

      It was ios 12.3.1

  10. llehyevets ylloh

    07/04/2019 at 1:13 pm

    why cant anybody see the racket that apple is? how do you think they got a trillion dollars?

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