i am wondering something about my iphone 3g. i have a iphone 3g MB046LL, when i get it i was running on baseband 04.26.08 version 3.0 (yes it is a 2nd hand iphone), and i saw the homescreen there got cydia, and i checked up the model number on the page and i found out the phone is from at&t and most probably it was locked. i was planning to upgrade to 3.1.3 and i have used the f0recast tool to check my phone bootloader and it was at 5.7 so i knew that i can downgrade the baseband using fuzzyband and unlock it using ... tool. i want to perform a clean restore/upgrade so i restored the phone firmware to 3.1.3, not custom firmware as i just clicked the restore button and let itunes download the files and upgrade/restore it. to my surprise that after the phone is restored to 3.1.3, the itunes automatically activate my phone, and then my phone already have signal and i can make call without need to jailbreak and unlock. but what i know is MB046LL was from AT&T and it was for sure locked but i dont know why mine came unlocked. so in the end i opened up the phone and i saw that there are no wires leading to the sim slot there or any weird device attaching to it. so i just want to ask isit possible that AT&T set come factory unlocked?

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Added on May 16, 2010, 6:50 amhere i upload a screenshot for you to see. i have masked the iccid, imei and mac address but i left the serial number there so you all can check isit a iphone 3g haha.


This post has been edited by developer: May 16 2010, 06:51 AM

wow, then i am quite lucky haha. no need to worry about unlocking.