Good morning. I recently bought my A15 5G SM-A156B/DSN, which has a tray for 2 SIM cards. I cannot find where a memory card fits - the manual says that it goes into the same tray as the SIM but it clearly doesn't. There's a slot in the base, next to the power cord inlet, but no indication as to whether it's for a memory card or which way the card fits. Frustrating. If I can't fit a memory card, the phone's no use to me. Any ideas, please?