How i can upgrade my phone
How i can update my phone
iPhone 7, iOS 14
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Hello,
Here are two different ways to ensure the highest iOS that your device will support is installed on your device.
Update your iPhone, iPad, or iPod touch wirelessly. Click here --> Update your iPhone or iPad - Apple Support
Here are instructions about how to update your iPhone, iPad, or iPod touch with the Finder on a Mac computer --> Update your iPhone, iPad, or iPod touch with the Finder - Apple Support
Your iPhone 7 can update as far as iOS 15.7.3