S3bash wrote:
Hi, I’m trying to find a signed version of iOS 15 or 16 for my iPhone 11, because since I installed iOS 17
a few weeks ago, my phone is messing with it’s battery, and it’s performance, so I don’t know if anyone has a link with that version signed, I really need it
No going backwards...
unless you have some archived backup saved..
Restore from backup, restore as new device.
Restore your iPhone, iPad, or iPod to factory settings - Apple Support
put your iPhone in diagnostics mode - identify potential hardware and software issues
How to put your iPhone in diagnostics mode - Apple Support
Note: The current stable release of iOS including bug fixes, is iOS 17.5.1
Update your iPhone or iPad - Apple Support
If your iPhone or iPad won't update
If your iPhone or iPad won't update - Apple Support