Battery Replacement - How to slide out battery power and data cable

I'm at step 7 in the IFIXIT MS Surface 3 Battery Replacement Guide. It says to carefully slide out the battery power and data cable but mine seems to be retained by a plastic pin sticking up from the case bottom. The replacement battery ribbon cable also has a hole in it (some battery pictures have an open slot instead) so I assume the existing flat battery cable also has a hole for the pin I see to stick through. Is there a trick to slip the cable over the pin without undoing main board screws?