Originally Posted by andy_d0
Ok I'm sold. I'll give it a shot. But, what is with the MJ2 / MJB stuff?
The stock / OTA 4.3 comes with the MJB version of bootloader and modem. The earlier leaked version of the Samsung/AT&T 4.3 ROM came with the MJ2 modem and bootloader. As long as you are installing to the correct device, the d2att, there should be no issues with the MJB modem, as long as it is good in your area. Some prefer the MJ2 bootloader over the MJB because the MJB will brick your phone if you try to Odin to an earlier version of stock. Yet some of the well known devs do not have an issue with the MJB bootloader. It is not until the last few days that recovery flashable version of the stock 4.3 became available, enewman17 posted it in the development forum.
TW 4.1.2, stock, rooted,
Samsung Captivate SGH-i897
Currently back to stock: GB 2.3.5 - UCKK4 (was CM9)
rooted, TiBu frozen, Kernel: CORNv7l.06 from mtcarey
resurrected from softbrick using 4-2ndtwin's Heimdall OneClick