MEMORY ISSUES IN 12 pro max
I have updated my phone yesterday with the latest update ie ios 15.4. And after one day my storage space reduced to 78 GB from 234 Gb. I tried all updated but no joy. Kindly provide solution.
iPhone 12 Pro Max, iOS 15
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It may now be correct but check the size of Other system data.
Settings, General, iphone storage at the end.
It may still be containing update working files that will self-purge but if greater than say 8GB after a few days then:
Backup, restore to factory, and restore from backup
If you can import your media to Photos or iTunes in a computer and copy important documents to a cloud server it will give you some resilience in case the restore from backup fails.
(1) https://support.apple.com/en-us/HT203977
(2) Restore your iPhone, iPad, or iPod to factory settings - Apple Support
(3) Restore your iPhone, iPad, or iPod touch from a backup - Apple Support