I did a factory reset on my old iPhone and it is now asking for a lock code. How can I reset that code?

I understand that you are referring to the passcode that is used to get to the Home Screen of your iPhone. You will have to reset the passcode to your iPhone by following the instructions in this guide published by Apple 👉  If you forgot the passcode or if your iPhone has been disabled. You will need a computer to execute this procedure and all the data on your iPhone will be erased.

Hopefully, you have a backup created on 👉 iCloud and/or on a computer. If you do then, you can 👉 Restore your iPhone from the backup file once your passcode has been reset and the iPhone has been returned to factory settings by the procedure in the link above.

Axel F.

Does the message on the screen state that you are looking at an Activation Lock? If you are dealing with an Activation Lock then you cannot remove the Activation Lock without the requested password. There is no way to reset it.

If the above is not what your are seeing on the screen, then provide details on what you are seeing. Thanks.

Axel F.

Can you post a screenshot of what you are looking at?