iPhone 12 - multiple issues; Apple ID the cause?

Hi everyone. I posted my question on 5 Feb 2021. I didn’t get any reply nor could I find my posting. So, here I am again posting the same question as follows:

I am experiencing many issues on my iPhone 12 since iOS 14.2. My phone is now on the latest iOS 14.4

When the bugs come, this same set of issues will occur:

can't download apps or update apps in App Store
can't launch some bank apps (it is always the same apps)
some bank apps make the phone very hot even with just1 min of use and even after "killing off" the app after use
auto back up to iCloud and "Backup Now" will not work
photos in Photos app will not be uploaded to iCloud automatically
WhatsApp Chat "backup now" will not work
there is a spinning wheel in Notes. For example, notes created on my MacBook Pro do not sync with Notes in my iPhone when spinning wheel occurs on my iPhone.
on the Settings app, tapping some native apps in Settings will cause the screen to freeze. The native apps in Settings affected are: Voice Memos, Stocks, Books, and Podcasts. When I tap any of the third party apps in Settings, the screen also freezes. To overcome it (unfreeze), I will need to "kill off" Settings" by swiping it up. When I relaunch Settings, the screen will be black and it will take a few seconds for the Settings page to appear.

The following are Occasional problems that accompany the above set of problems:

Can't make outgoing cellular/mobile calls even though the phone shows 4G; receiving calls are fine
No cellular signal so calls are not possible and no internet (this happened 2 times, thankfully) while my wife's iPhone 11 on the same network is fine.

To resolve the above mentioned problems, I will need to restart the phone.

In terms of frequency of the problems returning, it can be a few times a day (this has happened twice), or every day. The best trouble-free interval was 16 days.

Apple Store has given me a new replacement phone. But the new phone doesn't resolve the problems.

Apple Support believes that this could be related to my Apple ID and I may need to use a new ID. However, my Apple ID is working fine on my MacBook Pro and on my old iPad running on the latest version of iOS9.

I am reluctant to try out a new ID because it will mean I will lose access to my contents associated with my current ID.

Yesterday, my niece’s iPhone 12 is starting to experience some of the issues I listed above.

Does anyone experience this problem or have any solution other than trying out with a new Apple ID?

iPhone 12, iOS 14

Posted on Feb 28, 2021 11:53 PM

Top-ranking reply

jawsd23

Level 1

8 points

Posted on Mar 3, 2021 5:18 AM

Hi, I've encountered similar problem and finally managed to resolve it by myself after talking to apple support for hours without getting a solution at all.

Try computer backup via lightning cable, is it working? mine didn't work and I figured it's got something to do with the system error. My total data was 30+gb (i'm using icloud photos) and i had 256gb version of iPhone X. The weird thing was, total storage showed that i had 220gb of total data, and 180GB++ og them was "other storage - system file"

Apple support said that it was cache and will clear itself up, but it doesn't make sense to have cache totaling 180GB.

The most annoying thing was I couldn't make any backup to iCloud as well, but I luckily bumped into a thread here about iCloud backup that told me to go to

setting-> iCloud -> manage storage -> backup data -> turn off all the APPS there

I finally managed to make an iCloud backup, and then erase my phone, and restore from iCloud backup. The restore process failed the first time and I almost wet myself. Thankfully it worked the 2nd try, and I'm having a super normal super fast phone now. and guess what? the 180gb "system file" cleared up, leaving only about 7gb.

All my apps are working, app store perfectly normal and I can backup fine using mac or icloud now...

so you should try anything to get a backup and then erase your phone and restore it from the latest backup. Hope you can resolve this as well, because I know how frustrating this problem is and there was like NO WORKING SOLUTION at all from apple support..

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iPhone 12 - multiple issues; Apple ID the cause?

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