How to Unlock the Bootloader for Atrix 4G Running GB 2.3.4 and 2.3.6 4.5.141 - YouTube
UPDATE: It has been confirmed that this method does work on ATT Gingerbread version 2.3.6 4.5.141. PLEASE follow all instructions and do not panic when device states "unable to boot" - Thanks to @soldieronarms for trying this out! UPDATE: The megaupload l...