No amendment to or waiver of any provision of this Security Agreement, nor consent to any departure by any Grantor from its obligations under this Security Agreement, shall in any event be effective unless the same shall be in writing and signed by the Administrative Agent (on behalf of the Lenders or the Majority Lenders, as the case may be, pursuant to Section 9.1 of the Credit Agreement) and such Grantor and then such waiver or consent shall be effective only in the specific instance and for the specific purpose for which given.