[Home](./index.md) > [@digitalpersona/enrollment](./enrollment.md) > [SmartCardEnroll](./enrollment.smartcardenroll.md) > [unenroll](./enrollment.smartcardenroll.unenroll.md) ## SmartCardEnroll.unenroll() method Deletes a specific smart card enrollment defined by its pubilc key hash. Signature: ```typescript unenroll(keyHash?: string): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | keyHash | string | a key hash of the card. If not provided, all smartcard enrollments will be deleted. | Returns: `Promise` a promise to delete the enrollment or reject in case of an error.