Activate with ebay sim card?
So a couple of weeks ago i went to the US and bought an iPhone 4. It has 4.0.2 out of the box and was activated with official at&t SIM card.
As of now, I am in my country and waiting for the 4.1 JB and subsequently plan on updating to 4.1 (retaining baseband 1.59.00) to JB (in case 4.0.2 isn't supported by greenpoison) and unlock with Ultrasnow.
My problem is that when i restore to 4.1 I will lose my activation (not sure whether greenpoison will hacktivate). In order to be prepared for anything I was looking into buying one of those Universal iPhone Activation Sim cards from eBay. I emailed them asking weather their activation sim works on 4.1, but the (Chinese) seller confused me by answering:
"By the way, pls ensure that your phone serial no match your the imei no. . if two no don't match, it cann't be activated. If s/n no. is 83936WMN3NP, which also cann't be activated."
Can anyone deduce what he means? Are Serial Numbers and IMEI supposed to be the same? Because mine aren't.
Thanks for your help. Any comments on my approach to hopefully JB/Unlock my iPhone 4 are also welcome. Thanks!