How can I update my iPhone?

Your iPhone is too old and would not be compatible with the newer software updates.

Click ▶︎ iPhone compatibility with iOS 13 for the complete list.

The time has come:

Shop one-on-one with a Specialist at an Apple Store.

Click ▶︎ Reserve a Shopping Session. 🛒

Hello~ Your iPhone cannot be updated beyond iOS 12. If you want to run a higher version of iOS you need a newer iPhone. If you choose a second hand device please take a moment to read these helpful link to make an informed decision…

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Also:

The All Too Common SAD Reality of Buying a Used iPad/iPhone

~Katana-San~

😁👍🏼