xda 2 nbftool

source can be found here

this is a tool to manipulate Himalaya nbf files. it can encrypt, decrypt, or change the header values.

xda2nbftool

a compiled binary can be found here

to decrypt the nk.nbf file type:

   xda2nbftool -d nk.nbf nk.nba HTC

to calculate the checksum of the file, for instance, if you manually changed something with a hex editor, type:

   xda2nbftool -c ms_.nbf

If you want to update the file with the corrected checksum, add the '-u' option:

   xda2nbftool -c ms_.nbf -u

You can also change values in the nbf header like this:

   xda2nbftool -sd PH10 -so Qtek -sl WWE -v ms_.nbf

examples

converting tmobile phone to use a O2 rom.

first decrypt the o2 upgrade: (the HTC password is used by the 'old' upgrade tool')

xda2nbftool -d NK.nbf nk.nba HTC

then change the operator name in the nbf to tmobile, so the upgrade utility will not complain:

xda2nbftool -so T-Mobile nk.nba

then re-encrypt it: (the 921211 password is used by the 'new' upgrade tool')

xda2nbftool -e nk.nba NK.nbf 921211

the 'new' upgrade tool can handle os images for the 'WWE' language.

extracting a v0910 upgrade

first decrypt it ( using xor encryption )

xda2nbftool -x NK.nbf nk.nba 0x89124137
xda2nbftool -x ms_.nbf ms_.nba 0x25863614
xda2nbftool -x radio_.nbf radio_.nba 0x12345678

then modify the header info

xda2nbftool -sd PH10 -so Qtek -sl ENG -v ms_.nba
xda2nbftool -sd PH10 -so Qtek -sl ENG -v Radio_.nba
xda2nbftool -sd PH10 -so Qtek -sl ENG -v nk.nba

then re-encrypt it.

xda2nbftool -x NK.nba nk.nbf 0x89124137
xda2nbftool -x ms_.nba ms_.nbf 0x25863614
xda2nbftool -x radio_.nba radio_.nbf 0x12345678

extracting a v1000 upgrade

xda2nbftool -x NK.nbf     nk.nba     0x20040304
xda2nbftool -x ms_.nbf    ms_.nba    0x20040305
xda2nbftool -x radio_.nbf radio_.nba 0x20040306

added option to find the xor key

xda2nbftool -t

will print the xor keys of all nbfs in the current directory

xda2nbftool -t -x

will print the xor keys of all nbfs in the current directory, and decrypt them to .nba files.