Questions about encrypted firmware flashing
Posted: Fri Sep 24, 2021 9:50 pm
Hi all,
this is my first post. I read a lot already, but couldn't find specific answers to my questions.
Situation: I have a brand new BH16NS55 FW 1.05_212006181342 and in the end I want to put a LibreDrive FW on it.
Now my questions:
1) Before I start flashing a drive, I usually dump the FW of the drive. However, SDFtool-flasher-GUI yields only a 70kB file and using SDFtool command line it says: "Error: full dump is disabled in this firmware version. DEBUG: Code 4279201797 at [gibberish address]. Command produced error code 0x8f0f7005.". With dump auto, a 70kB dump is produced. This is also probably the same 70kB dump MakeMKV asked me to send in to help development (which I did).
2) I read that I could use the patched DosFlash using a 32bit Windows Install to obtain a full 16Mb dump, is that correct although the firmware is probably encrypted? Would such a full dump help me (or anyone else) anything?
3) Does flashing via SDFtool keep my laser calibration data?
4) As the current firmware is encrypted and (from what I read) downflash-protected, would I first need to flash the "HL-DT-ST-BD-RE_BH16NS55-1.05-NM00400-212004211049.bin" from the MK-firmware archive? Or would I go straight to crossflashing the "HL-DT-ST-BD-RE_WH16NS60-1.02-NM00100-211810291936.bin" from the All-you-need-firmware-package?
5) If first going to the same but fixed 1.05FW, the MK-firmware archive only contains 1.05_212004211049 and not 1.05_212006181342 (which I have at the moment) so this already seems to be a downgrade. Could this create a problem?
Best regards
weaker
this is my first post. I read a lot already, but couldn't find specific answers to my questions.
Situation: I have a brand new BH16NS55 FW 1.05_212006181342 and in the end I want to put a LibreDrive FW on it.
Now my questions:
1) Before I start flashing a drive, I usually dump the FW of the drive. However, SDFtool-flasher-GUI yields only a 70kB file and using SDFtool command line it says: "Error: full dump is disabled in this firmware version. DEBUG: Code 4279201797 at [gibberish address]. Command produced error code 0x8f0f7005.". With dump auto, a 70kB dump is produced. This is also probably the same 70kB dump MakeMKV asked me to send in to help development (which I did).
2) I read that I could use the patched DosFlash using a 32bit Windows Install to obtain a full 16Mb dump, is that correct although the firmware is probably encrypted? Would such a full dump help me (or anyone else) anything?
3) Does flashing via SDFtool keep my laser calibration data?
4) As the current firmware is encrypted and (from what I read) downflash-protected, would I first need to flash the "HL-DT-ST-BD-RE_BH16NS55-1.05-NM00400-212004211049.bin" from the MK-firmware archive? Or would I go straight to crossflashing the "HL-DT-ST-BD-RE_WH16NS60-1.02-NM00100-211810291936.bin" from the All-you-need-firmware-package?
5) If first going to the same but fixed 1.05FW, the MK-firmware archive only contains 1.05_212004211049 and not 1.05_212006181342 (which I have at the moment) so this already seems to be a downgrade. Could this create a problem?
Best regards
weaker
