Hello guys. i am sharing the software for NDDN-w54 till 58.just follow the following steps.
https://www.dropbox.com/s/v06ebd6nnol153d/Vitz.rar?dl=0
Download the vitz.rar file..
unzip it
Copy all the files in it to ur Blank CD-R . the files should be in the root folder..
name the CD 86271-60V442
Burn the CD
run the CD and enjoy
can u do the same for nsdn w60? or atleast the unlock code as to where it could be found? much help thanks!