“Unable to check for update” ios 18

Hi I am on an iphone 15 pro (US version) running ios 18 build number 22A5282m and the software update page of settings says that beta updates are off (cannot be turned on (there are no public or developer beta options either)) and the main page displays this error message: “Unable to Check for Update An error occurred while checking for a software update. Try Again“ <— in blue

i tried to put my device into recovery mode to restore but it just started bootlooping and only stopped when i let go of the power button.

next was the factory reset. i completely emptied the phone and set it up again. i restored from an earlier backup but the problem still remained. I am unable to update and my battery life is really suffering (3-4h of screen on time. Background app refresh and location services are turned off and low power mode is turned on)

any ideas would be appreciated

thanks

“Unable to check for update” ios 18
 
 
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