Hi again,
Finally I found the way to re-flash an official firmware on NTG2.5 by using the Engineering Menu -> SW Update and a cooked CD that I managed to create by myself. Everything is working fine and flashed successfully with an official firmware from MB Telematic CD.
The problem is when you try to flash a modified firmware. If you had modified even one byte from the original NK.BIN or NK2.BIN then you cannot flash them because you need a 2048bit signature usually written on SECURITY.DEF file. In this file there is also a checksum and a total number of kilobytes (total size of NK+NK2 / 1024) that can easily created.
So now, my question is this... Does anybody succeeded to flash any kind of firmware (Gateway, Bluetooth, AVC or Navicore) through DAS in developer mode without using signature ???? Maybe without SECURITY.DEF file????
Please let me know, Thanks for your time.
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