HP 21-b All-in-One ENERGY STAR Product End-Of-Life Disassembly Instructions page 9

19. Release 8 screws to remove Hinge from M/B shielding.
20. Release 4 screws to remove M/B shielding from Back cover and we finish dis-assembly the unit.
EL-MF877-00 Page 9
Template Revision C
Last revalidation date 04-01-2018
HPI instructions for this template are available at EL-MF877-01