SMA PUK2.0

SMA PUK2.0 replaces for products with firmware version ≥ 4.00.00.R the previous procedure for logging in to the user interface if you have forgotten the password for your product. Whether your product supports PUK2.0 is shown on the login page of the user interface via the information button.

To improve security for your product, SMA Solar Technology AG recommends generating a product key. With the product key, the product can be unlocked directly on the user interface and does not require a chargeable order of a PUK via SMA Solar Technology AG. If you have lost the product key, you can generate a new one by physically accessing the product.