Hi. i bought a nano sim card for my iphone 5 last week. the guy at the koodo kiosk said, its active, put into your phone and it will work. i've a unlocked iphone 5. when i insert the sim, it gets reception with LTE and gives an error "ME returned a temporary error" and after a few seconds network signal disappears & phone starts showing "No Service" I tried to go to safari before signal disappears, internet works for a few seconds, but when i try to call someone, phone starts showing "no service" i called koodo customer service center, they said its a sim card problem, go get a new one, same problem on new sim card, called again, they said get another one, got another one today but same thing. if i turn off the LTE, it doesn't get the signal at all, not even for a few seconds. my iphone 5 works fine with Bell, it was a Telus phone originally but i got it factory unlocked. I can't go to store again until weekend because the closet Koodo store is 2 hours away from my town. Not a very good start with Koodo.