I can't find the info to do this anywhere. I want to re-set the new update.

Thank you in advance.

You can't really reset it firmware-wise. You can reapply the firmware or downgrade 1-2 firmware back manually via the Go app or the Assistant 2 software. To ensure that it's free of any presets, you can try the following button combination:

* Turn on the controller, and the aircraft should be off.
* Press C1, C2, and shutter on the controller then turn the controller off.
* While holding the buttons, turn on the RC, then the aircraft and relink the remote.

What bird are you flying - a 4 Pro or a 4 Pro +   ? If it's a + it's pretty simple, there's a menu item in settings on the RC