I have a DL>SQ connection (so T2>T1) coming up on separate tickets. Hand baggage only. Will not have SQ boarding passes as I cant do OLCI (assume this is because they want to do a passport check), but it seems I can still do airside transfers with just showing my itinerary.
Assuming I get to T1 okay, will SQ allow me to just check in at the SilverKris lounge (we are in J). Would be nice to go straight there vs having to stop by the transfer desk or gate.