Have just done a factory reset and it still seems not to be accepting the manufacturers unlock code. The Baseband version is showing as G935FXXU1BPJE, the build# as MMB29K.G935FXXU1BPJE and the kernel as 3.18.14-9519568 dpi@SWHD4913#1. The dialer shortcut in your link article starting *#1973...