Recover data with no backup after factory reset
iPhone 11 pro max memory was full, it crashed and when restarted it gave me two options, one to update and one to factory reset, I chose the update, and after update was done it did factory reset as well! so I lost very important files and have no backup.
my question is, is there a robust method supported by apple to recover?
Please let me know
Thanks
Armin
iPhone 11 Pro Max