iPhone storage
I have been trying to free up space on my iPhone 6 Plus, I’m currently on software version 15.4, even after deleting several apps and data, it doesn’t reflect on the storage, I have even deleted the safari browsing data, I have force restart the phone, the system data is about 20gb, which I have tried to reduce to no avail, it is the major thing that is taking up space. There is no way for me to upgrade the iOS because of this issue too. I’m unable to use my phone conveniently because of this issue what can be done?
note; my iCloud storage is full too, so there is no way to save space using that
Also I have tried to delete the voice memo app and data several times, it’s not going even though I selected the option to delete not to offload it keeps showing
please, what can be done to resolve these issues??
iPhone 6s Plus, iOS 15