My sons iPhone7
My son’s iPhone 7 will not start up, switch off & the apple icon will not go off. We have tried resetting it, tried connecting it to laptop..... nothing! The phone is a year old.
iPhone 7
See if this helps: https://support.apple.com/en-gb/HT201412. And, an iPhone 7 is more than 1 year old. You may have had it for just 1 year.