If you want to unlock your iPhone passcode without a computer or Face ID, unfortunately, there’s no official Apple method that bypasses the passcode without using one of the two. Apple prioritizes security, so to unlock a locked iPhone, you typically need either Face ID, the correct passcode, or a computer to reset the device through iTunes or Finder. However, if you're using iOS 15.2 or later, you might see a "Forgot Passcode?" option after several failed attempts—tap it and use your Apple ID password to erase and reset the phone directly on the device. Just make sure the iPhone is connected to Wi-Fi or cellular data.