Support P7500 3G OEM Factory Unlocked ICS Update?

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http://androidforums.com – Hello Everyone, I just bought a Samsung Galaxy Tab 10.1 P7500 3G from eBay. This is a supposed to be a factory unlocked (OEM, unbranded) version. I don't see any branding anywhere. I am using a AT&T SIM in the USA and everything works fine. I searched the box and the tablet, but cannot see any Vendor ID / Career anywhere. I want to update the OS to ICS, but for my model, there is no OS Update available yet. I tried OTA and Kies. Nothing available. Originally, there was a OTA update to OS 3.2, which I did. So, my question is, when can I expect to receive the ICS update? Will it be (General)