Original firmware for HL-DT-ST BD-RE BH40N (FW GA05) after failed WH16NS60 flash

[Kokoro111]

Hi everyone,

I recently bought this drive from Lenovo:
Lenovo Part Lookup

According to the sticker, it is an HL-DT-ST BD-RE BH40N.
When I opened MakeMKV, it identified the chipset as MT1939.

Curious, I opened up the drive and found that it actually has a MT1959UWDN chipset.
So, I attempted to flash it with the WH16NS60 firmware. The flashing process completed successfully, but now the drive no longer reads Blu-rays.

I found someone in this thread who had the exact same issue:
Forum Thread, but I have firmware GA05 instead.

I also tried flashing the same firmware mentioned in that thread, but nothing changed – the drive still doesn’t work.

Does anyone have the original firmware for GA05? I have searched everywhere but couldn’t find anything.

I have attached some images that might help:

Normally, I can fix these things myself, but I’m really stuck this time. Thanks in advance for any help!

[Kokoro111]

Hey everyone . . .

I think I may have inadvertently created a paperweight or a coaster with my Blu-ray drive.
I've tried every possible combination to fix it, but nothing has worked.
If anyone has the original firmware (GA05) or any other suggestions, I would greatly appreciate your help!

Thanks!

[Coopervid]

You should have believed what Makemkv said. These early 1959 chips had only 1939 functionality.

[Billycar11]

Hey everyone . . .

I think I may have inadvertently created a paperweight or a coaster with my Blu-ray drive.
I've tried every possible combination to fix it, but nothing has worked.
If anyone has the original firmware (GA05) or any other suggestions, I would greatly appreciate your help!

Thanks!

You don't need the original fw just mt1939 fw
See recovery section of guide below it has links to some mt1939 fw
But your biggest issue is you need a 32 bit os and a sata controller that supports ide mode.