Issues on my iPhone 12 Pro after updating to iOS 18.3.1

I installed 18.3.1 this afternoon (2/27/25) and now I'm having audio problems after making a video. When playing back the video, the sound volume keeps going in and out and is not clear... kind of muffled. Very frustrating I'm using an iPhone 11 Pro Max, who's volume replay was working perfectly right before the update was installed.

Then you may have to consider wiping and restoring from your backup.

Restore your iPhone, iPad, or iPod touch from a backup - Apple Support

or

Restore your iPhone, iPad, or iPod to factory settings using a computer - Apple Support

The iOS 18.3.1 update itself is likely not cause of your issues as tens of millions of users have updated without any problems. Unfortunately in life sometimes things go off the rails for no reason. There may have been an existing glitch on your iPhone that caused the update to go south.

If you are not comfortable with restoring your device by yourself you could contact Apple Support or take the phone to an Apple Store or authorized Apple service provider for assistance.

LauraES67 wrote:

It’s the OS upgrade.

Then please explain why the vast majority of users, myself included, are not seeing these issues with the update. Can you do that? Believe what you will but you’l be waiting a very long time for Apple to fix something that almost no one else has experienced. There are now 2 billion iPhone users out there.

very terrible update for my 14pm too… imagine watching a show in youtube or any movie in gmail and then the show has shooting, explosion, blasting and crazy boom sound then suddenly the screen just go dim and i cant see anything for awhile until it starts to finish all those blasting then it lights up a bit again…

second problem is swiping down the phone for easy access control and guess what? its worse than the ios 16 versions which you literally have to add and delete the control and i cant even make it the same way as the ios 16… how can one smartphone company being so professional end up making one of the worse software update in apple history?

and it also has the worst dark mode of all ios time… photo, safari, home screen all just seemed so wrong in every way… i really hope i can go back to my last ios update… ios 18.3.1 is 2/10

Mandar0912 wrote: "Yes my iPhone 12 is still running the original battery however the battery status has been showing “Service” for a while now which is basically when it falls below 79% of charge holding capacity"

Mandar ~ Although you haven't stated the battery's maximum capacity, the "Service" status indicates that the weak, aging battery needs to be replaced. And consider replacing it promptly — as your iPhone can be permanently 'bricked' if the battery completely fails during the next iOS update.

iPhone Battery Service

About genuine iPhone batteries

Repair Provider Verification

(Articles found by searching Apple's Knowledge Base.)

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setagem wrote:

All of a sudden, none of my charging cords are working. This is not my outlet. This is not my cord. This is not my USB being dirty. It’s not my phone being dirty. It’s people working at Apple that don’t have their act together, constantly changing things without asking. This needs to stop you need to do an update so I can charge my freaking phone. This is outrageous.!

There seemingly hasn’t been an unusual number of charging-related issues getting reported.

Force-restart, and check again: Force restart iPhone - Apple Support — continue to hold the third press until the Apple logo appears, past any sliders that might appear.

Then follow this sequence: If your iPhone or iPod touch won't charge - Apple Support

And though you indicate none, I’d look for any cruft lodged in the charging port, too. Use a light, maybe a magnifying lens, and a wooden toothpick or plastic pick, and careful remove any debris in the socket.

Or it’s a problem with the iPhone charging port or charging hardware. Contact Apple Support.

Thuis info is help helpful and is a confirmation of my experience. Whatever you do. IOS 18.3.1 can’t be fixed.

[Edited by Moderator]

my cellular stopped working. I have two e sims both are in no service. This is horrendous

Face ID won’t work either on my iPhone or on my iPad. I went on YouTube to try to fix the issue and nothing works. All I get is a message saying “Face ID is not available”. Even my iPad has a message saying that the display is not working properly and that the display is not genuine when I bought it less than a month ago. I’ve been checking everyday for a new update hoping they will correct the error but nothing.

Any suggestions?

@aubreyg - I am having the same issue with Family downtime - cannot even access the Screen Time submenu. Please let me know what your workaround was? This update has created a host of problems on my phone and I am infinitely regretting having automtic updates selected!

After the update iPhone 14 my back camera and torch is not working.i was unable to sign in to apple account after multiple restarts I am able to login .I have installed third party camera and tested then I am able to click camera but there are rainbow type color's on the pictures

Ur phone data has a bug u picked up on a website , phishing email or link u clicked on w text. That kernel can stay w the phone since u granted it access. You would more than likely have to upload all to I cloud and reset the entire phone to solve the problem .

18.3.1 iPhone XR

issues with update, as well. I should be able to set common defaults, not

APPLE—

...as how my photos are arranged, from a previous update. Request a sentence to be spoken from contextual menu, and oftentimes it 'winks' and system reverts to home screen... ..unstable—hopefully I.T. or whoever the body of individuals is, will resolve

With me, and in particular with my SE 3, I gotta say I am disappointed. The tapping function (2x / 3x) no longer seems to work, despite being active. Whether for control centre activation or to take a Screenshot, it doesn't work anymore. Interestingly I noted the battery consumption in the background has too, increased. And the other thing among the many here highlighted by unhappy people, is the ability to stream vídeos (YouTube, Netflix, Amazon) sideways on both sides. Now streaming full screen works in one direction, whereas prior to this, you could swing your phone both sides and the screen would adapt to your orientation.

All in all, an important safety update, but at a costly price for other funcional properties.

Please dont be rookies peeps. You can do so much better than this.