Want to install iOS 15 update from data

I'm glade to help you today

you can install the update by using cellular data by going to the settings > cellular >cellular plans ,and turn off the low data mode and update your phone .

if you still need help replay this message

stay safe!

That's correct. It requires an iPhone 12 or newer and a 5G data plan.

You can only update using cellular data if you have an iPhone 12 or newer and a 5G data plan.