Re: No update still for the Nexus 6!!!!
There aren't separate builds for anything on 6.x.x. LMY48Z is for tablets only and was replaced by LMY49F the next day. AT&T apparently made their own October security patch LMY48Y and hasn't done any legwork to create an OTA script to any of the newer versions, which should have started with updating to the MRA58K 2 weeks or so after rolling out LMY49F. AT&T doesn't need to approve anything, anyone and everyone can flash to the latest build MMB29S (Nexus 5, 6 & 9 only - the 5x and 6P are MMB29P and Nexus 7 is MMB29O), which is 6.0.1 and includes the January security update.
This is not entirely true. All carriers have approved and have sent or are sending 6.0.x OTA updates EXCEPT for AT&T. There are no updates for LMY48Y or LMY48Z available at this time. It has nothing to do with device settings - any Nexus 6 with an AT&T SIM installed running one of these builds will remain on 5.11 until AT&T finally approves the update.
There aren't separate builds for anything on 6.x.x. LMY48Z is for tablets only and was replaced by LMY49F the next day. AT&T apparently made their own October security patch LMY48Y and hasn't done any legwork to create an OTA script to any of the newer versions, which should have started with updating to the MRA58K 2 weeks or so after rolling out LMY49F. AT&T doesn't need to approve anything, anyone and everyone can flash to the latest build MMB29S (Nexus 5, 6 & 9 only - the 5x and 6P are MMB29P and Nexus 7 is MMB29O), which is 6.0.1 and includes the January security update.