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
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