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BU40N with "GC02" firmware, flashes report success but never commit

Posted: Wed Jul 15, 2026 1:03 pm
by NahalielBriathos
Has anyone manage to flash a BU40N with the GC02 firmware? Every time that I try, it never commits.
Every flash attempt with 1.03MK reports full success via makemkvcon rawflash/enc on Linux. After every cold boot, makemkvcon -l still reports GC02, unchanged.

Drive ID: HL-DT-ST_BD-RE_BU40N_GC02_211801310916_KZBI5NB5212

Any help is greatly appreciated

Re: BU40N with "GC02" firmware, flashes report success but never commit

Posted: Wed Jul 15, 2026 1:23 pm
by Billycar11
Likely no enc
See guide below
Or email me or Marty for an automated flasher.

See below for email

Re: BU40N with "GC02" firmware, flashes report success but never commit

Posted: Wed Jul 15, 2026 8:13 pm
by NahalielBriathos
Here is the complete command that I ran:

Code: Select all

LD_LIBRARY_PATH=../lib ./makemkvcon f -d /dev/sr0 -f sdf.bin rawflash enc -i HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934.bin
Reading input file HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934.bin
Flashing flags = 0x0 : 0 0 0 0 : ---- ---- ---- ----
Sending image in encrypted format
Current Drive ID: HL-DT-ST_BD-RE_BU40N_GC02_211801310916_KZBI5NB5212
Ready to write drive flash memory.
Type "yes" to continue, "no" to abort
yes
Operation started: Sending flash image to drive
 100% Operation finished                                
Operation started: Programming flash
 100% Operation finished                                
Done successfully
After a reboot I did:

Code: Select all

LD_LIBRARY_PATH=../lib ./makemkvcon f -l
Found 1 drives(s)
00: dev_21:0, /dev/sr0, /dev/sr0
  HL-DT-ST_BD-RE_BU40N_GC02_211801310916_KZBI5NB5212
GC02 persisted.

Re: BU40N with "GC02" firmware, flashes report success but never commit

Posted: Wed Jul 15, 2026 10:49 pm
by MartyMcNuts
NahalielBriathos wrote: Wed Jul 15, 2026 8:13 pm Here is the complete command that I ran:

Code: Select all

LD_LIBRARY_PATH=../lib ./makemkvcon f -d /dev/sr0 -f sdf.bin rawflash enc -i HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934.bin
Reading input file HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934.bin
Flashing flags = 0x0 : 0 0 0 0 : ---- ---- ---- ----
Sending image in encrypted format
Current Drive ID: HL-DT-ST_BD-RE_BU40N_GC02_211801310916_KZBI5NB5212
Ready to write drive flash memory.
Type "yes" to continue, "no" to abort
yes
Operation started: Sending flash image to drive
 100% Operation finished                                
Operation started: Programming flash
 100% Operation finished                                
Done successfully
After a reboot I did:

Code: Select all

LD_LIBRARY_PATH=../lib ./makemkvcon f -l
Found 1 drives(s)
00: dev_21:0, /dev/sr0, /dev/sr0
  HL-DT-ST_BD-RE_BU40N_GC02_211801310916_KZBI5NB5212
GC02 persisted.
No ENC!!! rawflash main

Re: BU40N with "GC02" firmware, flashes report success but never commit

Posted: Wed Jul 15, 2026 11:49 pm
by NahalielBriathos
That worked, thank you!

My bad.. I thought you meant that I tried the command without the enc param when you said no enc.. should've read the guide more carefully.