iPhone 17 Pro Max lags when switching apps and froze completely after a week

“[…]I reported it to Apple and contacted tech. This was before the most recent update but it’s still happened after the update. The lag for the passcode is extremely bad also. I have to put my password in sooooooooooo slow or it won’t pick up my inputs. I’ve tried troubleshooting, reset and accessibility settings with no resolve.“

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👍 Thanks for doing your part in reporting this! It will help many, for certain!

Troubleshooting a Lagging iPhone:

Clear Storage Space:

Have you recently checked your iPhone storage? Having low available storage can most certainly cause lagging, as process are likely being swollen up. Caches may have intensely uploaded. So, clear them.

About Troubleshooting iPhone Storage:

Internal storage cannot be upgraded. It is what it is. So, the maximum internal storage capacity never increases, even if you upgraded your iCloud plan. Learn More here: What's the Difference Between Device Storage and iCloud Storage? Apple Support

So, what to do...

Clear Space Using my User Tips:

• How to Clear Space from your Mobile Device, and What to Clear: - User Tip
• How to Clear "Other" in your iPhone's Storage - Use Backup - User Tip

"iPhone 17 Pro Max lags when switching apps and froze completely after a week: Hi guys , I’ve had the phone from launch , it has been a great phone . Other than there being very laggy moments . When quickly switching between apps or closing them . Exactly 7 days later , my phone froze when I went front watching a YouTube video , switched to the camera and nothing would work .. it froze. I had to do a hard reset to fix it. I have video proof as well. ?"

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Lagging iPhone:

A. Report this to Apple:

iOS26 was released on the 20th of this month. And there are plenty of bugs reported on these forums; freezing being just one of many.

So, do your Part: Provide Apple with feedback on this, letting them know about this issue.  Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come. Apple will know nothing of you occurrences, if you don't report it to them.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: that this all began after installing an update. Include the URL of this thread
4. Proceed from there as necessary

B. Use these Links:

Refer the the following for troubleshooting techniques...

• If the Screen isn’t Working on your iPhone or iPad - Apple Support
• If your iPhone is Stuck on the Apple Logo - Apple Support
• If your iPhone Won't Turn On or is Frozen - Apple Support
• If you Need More Help - iPhone - Apple Support

Same concern here. I noticed a lag between apps or each time when trying to put in my passcode. Now three separate times, my phone has completely frozen for over 20 minutes each time. I was unable to do any rest and just had to wait for it to unfreeze. I was watching a video in a popped out tab (in like discovery + or Netflix) and opened my camera to take a picture when it froze. Each time was the same scenario. I reported it to Apple and contacted tech. This was before the most recent update but it’s still happened after the update. The lag for the passcode is extremely bad also. I have to put my password in sooooooooooo slow or it won’t pick up my inputs. I’ve tried troubleshooting, reset and accessibility settings with no resolve.