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Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Fri Feb 08, 2013 7:37 pm
by strugler
juuso wrote:You have to connect to TV trough ftp, navigate to /mtd_exe and copy exeDSP binary from there. Further - according wiki article at your responsibility.
1.
patching.
2.
installing.
I hate to be keeping asking questions but this is what happened:
- i got the exeDSP from the directory
- i open the file in a hex editor just as instructed
- but i look for the string 10 80 BD E8 08 40 2D E9 04 00 50 E3 00 F1 9F 97 3F 3F 00 EA to remove the cinavia crap i keep getting string not found.
i have a B-FIR firmware
what am i dpoing wrong ?
Thank you so much
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Fri Feb 08, 2013 7:52 pm
by strugler
The strng that i was able to find, that is close to what is the wiki is:
10 80 BD E8 40 2D E9 04 00 50 E3 00 F1 9F 97 0C 00 00 EA 3C
should i modify this one? if so which values to change and with what? Since this is different from the values that are in the Wiki:
10 80 BD E8 08 40 2D E9 04 00 50 E3 00 F1 9F 97 3F 3F 00 EA
EDIT: i am using xvi32 as the hex editor
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Sun Feb 10, 2013 12:01 pm
by strugler
Guys, can anybody help me plz:-(
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Mon Feb 11, 2013 12:36 am
by strugler
juuso ? Anyone?
can anybody plz help me, i'm almost there plz guys
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Mon Feb 11, 2013 7:06 am
by juusso
what is full firmware name and version?
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Mon Feb 11, 2013 9:58 am
by strugler
juuso wrote:what is full firmware name and version?
Thank you for your reply juuso,
The firmware was downloaded using samygo DNS trick. it is the 1116 version. But i dont know where i can see the full name. But according to samsung this is a FIBR type firmware.
How can i be sure ?
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Mon Feb 11, 2013 10:16 am
by juusso
what is full firmware name?
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Mon Feb 11, 2013 11:14 am
by greenhorn
It is supposed to be B-FIRHTBEUC.
Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Mon Feb 11, 2013 1:38 pm
by juusso
I made small tool for windows. It searches for string and makes patched exeDSP. 18 bytes should be written as result. If you get more (for example 36), then means, string is found more than in one exeDSP address - not sure about result, don`t use such exeDSP. If 0 bytes written, means string was not found, binary not patched. Btw, i changed wiki article and from now one, but longer string, updated by Chorloser, is left.
Code: Select all
08 40 2D E9 04 00 50 E3 00 F1 9F 97 ?? ?? 00 EA ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? 06 00 A0 E3
p.s. don`t worry if patcher freezes. It makes job and let`s you know about result

Re: I am lost trying to downgrade my HT d6750w firmware
Posted: Mon Feb 11, 2013 9:31 pm
by strugler
juuso wrote:I made small tool for windows. It searches for string and makes patched exeDSP. 18 bytes should be written as result. If you get more (for example 36), then means, string is found more than in one exeDSP address - not sure about result, don`t use such exeDSP. If 0 bytes written, means string was not found, binary not patched. Btw, i changed wiki article and from now one, but longer string, updated by Chorloser, is left.
Code: Select all
08 40 2D E9 04 00 50 E3 00 F1 9F 97 ?? ?? 00 EA ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? 06 00 A0 E3
p.s. don`t worry if patcher freezes. It makes job and let`s you know about result

you are awesome man. IT patched 18bytes so i should be good.
Now i am abt to go through the installing part. For CHMOD part can it be done using filezilla FTP client? since i can change the permissions that way, or does it have to be through netcad ?
Again thank you very much juuso for your time and help