BD Firmware Downgrade (SamyGO Proof of Concept)

[huball]

Hello, I have tried it with my HT D5500.
Default Settings -> no upate available.
DNS change -> Updade 001116
I still have Cinavia

have I done something wrong?

sorry for my bad english

greets from germany

I have ht-d5500 with 001116 firmware also.
Today i saw Cinavia error in 3d mkv movie "Frankenweenie" .
Is it a new Cinavia?

Sorry for my english

[ToninuMT]

I have a BD-D5500 with version 2013/02/14/_001031 I changed the DNS on the player to manual and entered the IP address as instructed, reset the player, checked for updates but it said there was no new firmwares. Have I done something wrong?
Thanks!

[zbyszek82]

Hello

Could you give me firmware without CINAVIA (now I have 1010) for BD-D7000 ?
I will try downgrade because I have problem with CINAVIA

Thanks

[zbyszek82]

OKi

I do downgrade with tutorial from the first page and evrything is OK.
Now I have 1004

[janda]

BD-D5100 update:

The BD-D5100 requires a certain domain to resolve BEFORE the upgrade server is contacted. Here is the log of HTTP requests made using standard DNS:

[site blocked: http://www.samsungotn.net] from source 192.168.1.122, Thursday, June 21,2012 22:10:56
[site allowed: m.icq.com] from source 192.168.1.122, Thursday, June 21,2012 22:10:44
[site allowed: http://www.icq.com] from source 192.168.1.122, Thursday, June 21,2012 22:10:43

Note that the ICQ resolve is required before Samsung is contacted.

the device has smarthub? are you sure that no icq widget is installed? are your 100% sure requests came from bd-device and not from other computer?

If ICQ is blocked, or down, the BD-D5100 tries another domain:

[site allowed: http://www.internic.net] from source 192.168.1.122, Thursday, June 21,2012 22:14:55

And if that is blocked:

[site allowed: http://www.yahoo.com] from source 192.168.1.122, Thursday, June 21,2012 22:24:28

(it also tries these in random order)

for me it looks like some IM try to contact some servers

I believe

The BD-D5100 REQUIRES DOMAIN NAME RESOLUTION

before it attempts to contact http://www.samsungotn.net.

Therefore, arris69 (if possible) should modify his apache (using a simple .htaccess file, or firewall chain rule) config to resolve all DNS requests to his "www.samsungotn.net" server, OR, modify all requests BUT "www.samsungotn.net" to an empty HTML file/directory.

this won't work. what you can do is maybe some NAT rules or host defines on your router

I am going to assume that more BD units in the future will work like this, resolving domains before allowing upgrades. Luckily, it's a simple fix.

Thanks again arris69!

can you make some network-traffic dump (maybe with tcpdump?)
like:

Code: Select all

tcpdump -i <correct nw interface> -e host <ip of bdplayer> -s0 -w out.cap

regards
arris

Hi folks,

it is finally possible to downgrade BD-D5100 using some stuff?
When i try to change DNS on my router and player also to DNS address from 1st post, player says under Network status: Internet - not connected and under network test: internet service failed with "can't get to Internet".

It not contains SmartHUB, just plays files using DLNA/LAN. It seems that here is few users with this player unable to downgrade this unit. Also seems that Mr. arris69 doesnt have required firmwares on his server.

Please add it if you can. Thanx.

[qwertzpl]

Correct, any chance/forecast for d5100 users please?

[Scouzer]

I can confirm that the 1015 works great on a BD-D8200n

[eliseardo]

I'M triying to downgrade HT-E4500 bluray model but is not possible
When can i downgrade this model, thanks!!!

[zooranfr]

i have HT-E4200,update to 1013 or 1014 accidently,than follow this procedure and back it to the 1011.1
everything was ok(install widget by usb,no cinavia,etc...)
now again upgrade accidently to 1014.1 and no way to get it down to 1011 or some another ver...
i used 149.154.159.134 server before but now it says-no new firm for you
for widget problem nstream etc,change config file without user and work perfect

[Fr3dd13]

I have a Samsung Blueray DVD player BD-D6500-ZK which I have accidentally upgraded its firmware . I have followed the instruction on how to downgrade the firmware but failed. My current firmware version is BSP-D6500ZK-1031, can anyone help me out on downgrading it back to version 1015? I am now stuck with Cinavia...