ICS users!
FYI, I have discovered that on my SGS4G running AOKP / Team Acid ICS, following the procedure in OP (ie searching for FF FF 01 00 00) but instead checking the file /efs/root/afs/settings/nv_data.bin works fine.
Also, and I haven't bothered to check and see if it's as a result of being on a custom rom, but I'm able to use generic file explorers on Android like Ol File Manager (free from market) to just copy the file, no terminal hackery required. YMMV.
Thanks OP!
-K
FYI, I have discovered that on my SGS4G running AOKP / Team Acid ICS, following the procedure in OP (ie searching for FF FF 01 00 00) but instead checking the file /efs/root/afs/settings/nv_data.bin works fine.
Also, and I haven't bothered to check and see if it's as a result of being on a custom rom, but I'm able to use generic file explorers on Android like Ol File Manager (free from market) to just copy the file, no terminal hackery required. YMMV.
Thanks OP!
-K