My non-jailbroken iPhone 6S Plus (iOS 9.3.5) failed to boot up to the lock screen (stuck in apple logo) after the battery was depleted. Hoping to keep my data intact, I have tried several online suggested solutions such as booting it into safe mode (powering on by pressing the power button + volume up button and holding the only volume up button when the apple logo shows) but to no avail.
I looked at several other solutions such as creating a no erase ipsw but am unsure if this is a safe solution (eg. no malware, will not further damage the phone, bricking the phone).
Has anyone tried this solution or has any other solutions I could try? Really hoping to keep my data. Thanks in advance.