The display unit needs to be removed from the dash and the screen replaced inside. No coding is necessary by replacing the component part. The replacement screen provided is the original replacement part. The listing is for a replacement screen only, the listing doesn't include the plastic surround.
Once the screen is changed no coding is required and the screen is plug-and-play. The listing is for BMW i3 fitted with 6.5 screen. Confirm compatibility by checking the sticker on the back of the screen module number.