Press the relative number of the detected device (1 in my case) and press "R" (without quotes) to dump eeprom firmware.It should show the Manufacter ID of your device, namely "MediaTek MT1959".It could be needed to type DOSFLASH 3-4 times before ASUS/LG device be properly detected. If it does not detect anything, retype again. At the command Prompt, type "DOSFLASH" and press Enter.Enable CSM (Compatibility Support Mode) and boot from the USB stick in Legacy Mode.Be sure to connect your ASUS/LG drive alone, as SATA Primary Master (USE SATA1 or SATA2 controller ports).If you can handle only AHCI, DOSFLASH will not properly work, or it could not work at all. Enter into motherboard BIOS settings and set SATA Controller as IDE (or Legacy).Unzip on USB root the DOSFLASH.zip attached file.Prepare an USB FreeDOS bootable stick, using Rufus (which can be downloaded here).Steps for dumping firmware : (DOS Method)
Hl dt st bd re wh16ns40 full#
Now, you can restore SATA Configuration settings, disabling CSM (needed for a full UEFI boot), and enjoy your UHD friendly device.Select the firmware you prepared before, and wait for the task to be completed.This time, select first "Erase Flash", and then "Write Flash". Once you have prepared the UHD friendly firmware, reboot Windows 7 Live PE from USB and run DOSFLASH_BH16NS40.exe again.To do this, you can send me your dump, or doing yourself via HEX Editing process (see below). After the reading/dumping process, you will need to take the clean 1.02 (or any other UHD Friendly firmware) and prepare it with data imported from the original dump.If everything looks fine, select first "Read Flash", in order to dump the current firmware.If not you have not properly set the SATA controller or it is not compatible with DOSFLASH. Now, you should see the BH16NSxx (or ASUS) device listed.Wait few seconds to allow Windows 7 properly loaded and as soon as the Windows 7 desktop appears, go to "My Computer", open the USB device letter, and run DOSFLASH32_BH16NS40.exe.Enable CMS in BIOS option in order to boot from the USB stick (NOT UEFI !!!!) and configure SATA controller as IDE !!.Unzip on USB stick root the DOSFLASH_Windows7.zip attached file below.
Hl dt st bd re wh16ns40 iso#
Hl dt st bd re wh16ns40 code#
Here is my own guide to successfully dump and downgrade firmware on any "UHD Friendly" devices, such as Asus BC-12D2HT / BW-16D1HT or LG BH16NS40/NS55 (WH16NS40/NS55) (SVC Code NS50) and similar drives having MediaTek chipset inside them.