I believe so before AT&T released it publicly so I may have to flash the 5.1 firmware when I get back from town. Yup, there is a Best Buy in my townHave you tried flashing the official MM release for the 920A via Odin, Also do you have things removed or disabled? the OTA updated will typically fail if the system check it does does not return the result it's expecting to see. there are various packages out there so you should be able to find it.
Also, Not sure where you are, if you are someplace that has Best Buy, they usually have a Samsung shop and the Samsung people are usually very helpful (Including having the ability to flash your phone to whatever the current official firmware is)
Cheers,
BR
RIP N7
Could it have been a pre-release and not the final build that went out as the OTA update? if so then the build number would be different than the current update is looking for and would fail the check. (sorry but i'm not as familiar with the builds that the N5 had because I went from an Note Edge to the N7 then to the N5)I believe so before AT&T released it publicly so I may have to flash the 5.1 firmware when I get back from town. Yup, there is a Best Buy in my town