FIG. 1 is a bottom plan view of a back cover for a handset showing my new design;
FIG. 2 is a right side view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a perspective rear view thereof.
The broken line showing of the internal surfaces is for illustrative purposes only and forms no part of the claimed design.