Hello Indiegogo backer, thanks for your request to upgrade your HoloPort Nano.
Please select the model of HoloPort you would like to upgrade to. We also require you to enter your Indiegogo Order ID, which can be found on your email receipt, or by logging in and viewing your contribution details.
You will be asked for your billing address upon checkout, but your shipping address will remain as the one used for you Indiegogo purchase. Should you wish to update your shipping address, you can follow the directions from the Indiegogo guide.
This upgrade includes a $10 fee for additional shipping weight.