Can I attach the Universal Interface directly to the back of my smartphone?Updated a month ago

No – we do not advise attaching the Universal Interface directly to the back of your smartphone.

Many smartphones feature a nano-coating or other specialized surface treatments. These finishes can significantly reduce the adhesion performance of the original 3M adhesive, meaning a secure and long-lasting bond cannot be guaranteed. As a result, the Universal Interface may detach over time.

Instead, we recommend installing the Universal Interface on the flat, smooth back of a third-party phone case. This ensures reliable adhesion and a secure attachment.