MM ALL ELECTRICAL - TOTALLY *********** !!!

My Samsung S4 booked on the 4th Feb in under warranty to repair water damage, collected today Sat 7th Feb and still not working, keeps saying \insert sim card"so I assume the card reader was damaged because the sim working in my spare Blackberry.<br> <br> You would think as a \""SAMSUNG REPAIR CENTRE\"" they would have tested the unit my inserting a sim to completely check all functionality!!!<br> <br> Now I must be inconvenienced a third time to take the phone back there"