How to regain access to stolen iPhone 15 Pro Max with a changed passcode?

Sorry, but going to the store is not going help at all if the bad guys changed your passcode. If they changed your passcode, they also likely changed the Apple ID and Password as well.

You can try erasing the phone to try to reset the passcode.....(the data on the phone is gone)......but if the Apple ID and Password was also changed, there will be no way to get into the phone without Apple's assistance.

If that is the case, you will need to submit your original invoice showing the dealer name, your name, the date of sale and the iPhone serial number to Apple as part of an unlock request.

Start here......If you forgot your iPhone passcode or your iPhone is disabled - Apple Support

With really good luck, you will be able to set up the phone again as your own. If you run into Activation Lock.....then you will need to submit an unlock request to Apple.

How to remove Activation LockApple SupportOfficial Apple Support › en-us

adiyaaa03 wrote:

I Got my iphone 15 pro max back after it got stolen. They changed the passcode for some reason. Is there any way to get my phone back without going to the store and paying extra money. Please kindly add details in which i can crack the code or do reveal the hacks to do. I am so desperate and tired after working on it for countless hours .... I want my phone now and please do kindly list the solution for this complicated problem..

There is no "crack" or "hack" that will let you crack the code and get into the phone without erasing it.

At a minimum, you will need to reset the phone – erasing everything that is stored on the phone. However, as Mr. Timmons indicates, if the thieves knew your credentials and had the run of the phone, the thieves may also have changed the Apple ID associated with the phone. Then you will need to be able to prove that you are the original purchaser if you want to have any chance of getting Apple's help in removing the Activation Lock.

If your Apple Account was compromised, I hope that you have taken steps to re-secure it.

If you think your Apple Account has been compromised - Apple Support