With all the Sony Xperia Zs (z1, z2, z3) you have to insert the sim into the sim tray. Some models have the sim in a different location. Its all basically the same expect for this video I use the Z3 and it takes a nano sim, not a micro sim.
If lose the tray you can get it ebay or amazon cheap. However some people have no problems inserting the sim card without the tray. But im not recommending this nor am i responsible should you mess anything up.
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