S.C. Code Ann. § 33-10-200: Amendment by board of directors or shareholders.

(a) A corporation's board of directors may amend or repeal the corporation's bylaws unless:

(1) the articles of incorporation or Chapters 1 thru 20 of this title reserves this power exclusively to the shareholders in whole or part; or

(2) the shareholders in adopting, amending, or repealing a particular bylaw provide expressly that the board of directors may not adopt, amend, or repeal that bylaw or any bylaw on that subject.

(b) A corporation's shareholders may amend or repeal the corporation's bylaws even though the bylaws also may be amended or repealed by its board of directors.

(c) Any notice of a meeting of shareholders at which bylaws are to be adopted, amended, or repealed shall state that the purpose, or one of the purposes, of the meeting is to consider the adoption, amendment, or repeal of bylaws and contain or be accompanied by a copy or summary of the proposal.