incorrect activation date

If you believe the information shown for your product is incorrect, you can submit your proof of purchase online

Your sales receipt is needed for Apple’s Limited Warranty, AppleCare Protection Plan, and AppleCare+ validation, so be sure to keep it in a safe place. Apple’s Limited Warranty is the same whether or not you register.

Warranty starts when it is sold.

Activation has nothing to do with it

If the Warranty date is showing as 1985, it means the seller did not properly register the sale with Apple .

About the purchase date or expiration date for your AppleCare agreement - Apple Support

That link does NOT show the activation date, it shows the PURCHASE DATE. It even says “Purchase Date”. From my phone:

iPhone 14 Pro

Purchase Date: September 16, 2022

So you do NOT have an activation date of January 1985. You have an incorrect Purchase Date, which means that the place you purchased it did not report the sale correctly.

The warranty starts the day the iPhone was purchased, not the day it was activated. It’s likely that the seller mis-reported the sale, or it was not sold by an Apple authorized reseller.

That’s what I said. It is NOT the date you activated it for the first time. It is the date the sale was recorded with Apple by the merchant.

If this is how you listen and respond to other users in the forum, I highly doubt Apple support didn’t listen to you. Most likely you argued with them and ignored what they told you was happening and was needed to correct it.

Are you solved this issue?

I’ve done that. It shows the date that the purchase was made, and the date my credit card was charged. Not the date that I activated the phone 2 weeks later.