Hi scotlarock,
you might look here, very good thread for adapting charging current and termination voltage on the lii-100.
202 is very similar, only R5/R6 (and the second pair) are not 150k but 51k.
I experienced the same uneven on some - not all - of my lii-202s (but at least only down to 4.168V…).
I suspect either tolerance of the resistors or bad adjustment in the firmware.
Which pcb revision of the 202 do you have?