S.C. Code Ann. § 36-9-622: Effect of acceptance of collateral.

(a) A secured party's acceptance of collateral in full or partial satisfaction of the obligation it secures:

(1) discharges the obligation to the extent consented to by the debtor;

(2) transfers to the secured party all of a debtor's rights in the collateral;

(3) discharges the security interest or agricultural lien that is the subject of the debtor's consent and any subordinate security interest or other subordinate lien; and

(4) terminates any other subordinate interest.

(b) A subordinate interest is discharged or terminated under subsection (a), even if the secured party fails to comply with this chapter.