This video shows you how to insert a Micro SIM card into the Nexus 5 by LG.However to answer your motherboard inquiry, it CAN be replaced. The memory cannot be removed from the Nexus 5 it is not made to support a standard micro sd card, instead the memory is stored via the internal RAM.I started off by taking off the nexus 9 backplate (very easy, just need a finger nail to get the clips undone) and you are immediately greeted with the internals of the tablet. Hello all! I am going to start work on adding a usb micro sd card reader to the nexus 9.This is located in the right hand side of the phone. To insert the sim card you will need to eject the SIM card tray or slot. If no card is inserted, the message “No SIM card” appears on the phone’s lock screen. To make calls and use mobile Internet on your Nexus 5, you will need to insert an active micro SIM Card.One of the most common complaints about the Nexus line of devices is that they don't have expandable memory. The Nexus 5 has no such slot, so depending on which variant you purchased, 16 or 32 gigabytes of on-board storage is all the internal memory your phone supports. Up their nose at 32GB in a phone with no. Might be planning to include microSD card slots in the new Nexus phones. Sorry There Won't Be A MicroSD Card Slot In The Nexus 5X Or 6P.