Passcode change itself

I have an Iphone 6. After restarting my device, it has asked me for the 4 digit passcode. i have the same passcode since i have the and i never changed it until...it changed by itself. How can this happen?

iPhone 6, iOS 8.3

Posted on May 12, 2015 2:45 AM

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Question marked as Top-ranking reply

Posted on May 12, 2015 6:01 AM

The passcode doesn't just randomly change itself. If so there would be millions of users complaining of not being able to access their device. Most likely you used something different and at the time you set it up or changed it there was a reasonable explanation for it but now you don't remember what you used. It happens and the way to fix it can be found here:


Forgot passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

55 replies

Mar 13, 2018 5:20 AM in response to owen0101

And did you notice I haven’t said anything since the day I first posted? When someone first says something about it, the initial thought is that they just forgot it. Now seeing that many people have had it happen I believe it’s an issue and haven’t come back year after year and said people are wrong. Unfortunately the forum won’t let you delete or edit a post that old. My post is at the top because it was the first reply. Calling me out would be different if I had come back time and time again saying people were wrong. Have you noticed that all posts marked as helpful don’t give a solution and are just posts saying it happened to them as well? While I can’t edit my original post, the link I provided does give information on how to fix the issue if it this does happen to you.

Feb 7, 2016 5:37 AM in response to anitasta

This happened to my husband. Woke up this morning to his iPhone requesting a 6 digit code when it had previously had a 4 digit number. Unfortunately his phone is now blocked as a result and needs restoring. He is now on an 8 hour flight for a week long work trip with no access to work emails and no means of resolving this until he is back in the UK office a whole week later. As loyal apple customers this is totally unacceptable and will have a serious impact on his ability to do his job. I had always regarded apple technology as enabling but clearly I was wrong.

Feb 19, 2016 10:43 PM in response to anitasta

iPhone 6s here. Just happened to me too. Same problem, same lock code since I bought it, I restarted and pump....my code doesn't work. NOW, I agree on that the code doesn't magically change, I am IT and I know that. However, it should be nice to know how this can happen without the user notice it or at least not realise what he is doing. That would be nice, not just answer "That cannot happen !!". Anyway, my iPhone is locked and not even my finger print can change that. Don't know what to do. Deleted from iCloud maybe ?.

May 28, 2016 6:20 PM in response to anitasta

Well ... My iPhone just changed its #code its self too.... same way that people are just saying and i never changed it and no one else, i woke up sent a message by WhatsApp , slept again, woke up and couldnt acces never again to it.

Im about to reset it and lose a lot of stuff.

So im starting to think #SteveJobs let them programmed to take over the #world =)


So yes its real, i dont know how is this happening, but yes, it changed the passcode its self.

Oct 8, 2016 11:55 AM in response to FelipeV

I do actually, but not one that anyone besides an engineer on the iPhone team could answer. This issue is real it just happened to me where I'm locked out of my iPhone 6S after the latest update to iOS 10.


What I'm railing against in my posts is that a lot of people on this community think that just because something is _not supposed_ to happen that it's impossible and must be human error that's causing the issue.


I've had the same passcode on my iPhone for several years (across different models). This morning that same passcode does not work. I haven't even opened settings in the last few weeks except to add wifi networks. I just feel bad for people who've had this issue, but are being talked down to with "user error."

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Passcode change itself

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