Unlocked Iphone t-mobile no service problem?

So i bought a prepaid activation kit from amazon and activated it today. I inserted the micro into my factory unlocked iphone 4 and the No service text shows. I really don't know why this is happening. I'm pretty sure its factory unlocked and i put $30 in the account. I'm running ios 5.1.1.

Check www.iphoneox.com to see if it is actually unlocked first. If it is, make sure the sim is activated. If that still doesn't work, do a restore to your iPhone connected to iTunes with your SIM card in the iPhone. If all of that fails, I would talk to T-Mobile they may be able to help out

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