Background: I have this DVD in a Sony Vaio VGN-NR21Z notebook. The lates OEM firmware that it have now is DH12.
Problem: I updated the firmware from Sony DS04 to OEM DH12. I tried to update to any released Sony DSxx version (DS03, DS04, DS05, DS06) but won’t install. Stays at DH12 and I can to update to other OEM versions DX14 and back to DH12 too. But it doesn’t work well in my laptop.
My questions: How can I solve this problem and update the firmware to the Sony DS version?
Sony support said that I’d have to send it for repair, but I’m looking for another way because I’m IT technician and only I need the file.bin to update it.
If someone have any solution I will be so grateful.
Thanks so much