BD Firmware Downgrade (SamyGO Proof of Concept)

Samsung's BluRay player related hacks.

chicky2207
Posts: 8
Joined: Sat Jun 16, 2012 12:03 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by chicky2207 »

Thank you for the warning. I turned off the player, unplugged it, waited a minute and plugged it back in. Still no download attempt, but perhaps I am doing something wrong.

Thanks again, mrlumpy
Hi,

If you have DHCP turned on, you should turn it off and configure IP manually.
For example my configuration to download firmware is: [row][cell]IP address[/cell][cell]192.168.1.12[/cell][cell]IP address of your device, avoid of IP collision with another device[/cell][/row] [row][cell]Mask[/cell][cell]255.255.255.0[/cell][/row] [row][cell]Gateway[/cell][cell]192.168.1.1[/cell][cell]IP address of you router/modem[/cell][/row] [row][cell]DNS[/cell][cell]46.4.199.222[/cell][/row]
This should works.

Chicky
chicky2207
Posts: 8
Joined: Sat Jun 16, 2012 12:03 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by chicky2207 »

Hi,

I tried again to download new firmware, I get again error 800.

Details about my BD:
Model code: HT-D5500Series_ZF
SW version: HTB-D6500EUB-1013.1
Firmware name: B-FIRHTBEUC

I have old version of firmware without any DRM, can you make downgrade?
Link: http://www.uloz.to/xPGecnw/b-firhtbeuc- ... 1014-0-rar

Chicky
mrlumpy
Posts: 12
Joined: Sun Jun 17, 2012 11:55 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by mrlumpy »

Thanks chicky2207 and arris69 for the great replies.

I had the settings exactly as you listed (well, my IP is slightly different).

BUT I had not yet used the internet on the BD-D5100 so I thought that was the problem. I clicked "yes" to all those "terms and conditions" and logged the outgoing/incoming connections with my router (using standard DNS):

[site allowed: http://www.worldtimeserver.com] from source 192.168.1.122, Thursday, June 21,2012 08:31:47
[site allowed: api.netflix.com] from source 192.168.1.122, Thursday, June 21,2012 08:30:53
[site allowed: cdn-0.nflximg.com] from source 192.168.1.122, Thursday, June 21,2012 08:30:41
[site allowed: nrd-api.netflix.com] from source 192.168.1.122, Thursday, June 21,2012 08:30:40
[site allowed: m.icq.com] from source 192.168.1.122, Thursday, June 21,2012 08:30:19
[site allowed: http://www.icq.com] from source 192.168.1.122, Thursday, June 21,2012 08:30:18
[site allowed: http://www.worldtimeserver.com] from source 192.168.1.122, Thursday, June 21,2012 08:30:03

So we know for sure that the BD-D5100 can connect to the internet (the IP of the BD is 192.168.1.122).

But when I changed the DNS to 46.4.199.222 and turned automatic upgrades on, turned the unit off and on etc, my router shows NO connections at all from 192.168.1.122

Strange, eh? Thanks for helping me with this.

EDIT: OK It's clear to me now that this firmware is checking for a port 80 connection to particular domains. They must resolve and answer port 80. Otherwise all network activity stops.

When I do the "network test", it resolves icq and connects to port 80:

[site allowed: m.icq.com] from source 192.168.1.122, Thursday, June 21,2012 08:53:29
[site allowed: www.icq.com] from source 192.168.1.122, Thursday, June 21,2012 08:53:27


When I do the "Network Status", it resolves yahoo and connects to port 80.

[site allowed: ca.yahoo.com] from source 192.168.1.122, Thursday, June 21,2012 08:53:08
[site allowed: www.yahoo.com] from source 192.168.1.122, Thursday, June 21,2012 08:53:08

So an easy solution would to use an IP chain rule to have ALL domains resolve to localhost on your DNS server and just have it host an empty page...
Last edited by mrlumpy on Thu Jun 21, 2012 6:03 pm, edited 1 time in total.
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juusso
SamyGO Moderator
Posts: 10129
Joined: Sun Mar 07, 2010 6:20 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by juusso »

Nothing strange, the SamyGO DNS server serves ONLY firmware downgrade.
LE40B653T5W,UE40D6750,UE65Q8C
Have questions? Read SamyGO Wiki, Search on forum first!
FFB (v0.8), FFB for CI+ . Get root on: C series, D series, E series, F series, H series. rooting K series, exeDSP/exeTV patches[C/D/E/F/H]

DO NOT EVER INSTALL FIRMWARE UPGRADE
mrlumpy
Posts: 12
Joined: Sun Jun 17, 2012 11:55 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by mrlumpy »

juuso wrote:Nothing strange, the SamyGO DNS server serves ONLY firmware downgrade.
Ok thanks. I must be doing something wrong. I'll write back once I figure it out, it's probably something silly.
arris69
Official SamyGO Developer
Posts: 1700
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Location: Austria/Vienna (no Kangaroos here)
Contact:

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by arris69 »

mrlumpy wrote:
juuso wrote:Nothing strange, the SamyGO DNS server serves ONLY firmware downgrade.
Ok thanks. I must be doing something wrong. I'll write back once I figure it out, it's probably something silly.
dunno, too lazy to check where you are located, but in some countries ISP's makes some transparent proxy connections and its not
possible to use foreign services like dns. (as example singapore, dubai)

check on your computer (from cmd prompt)

Code: Select all

nslookup www.samsungotn.net. samygo.tv
mrlumpy
Posts: 12
Joined: Sun Jun 17, 2012 11:55 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by mrlumpy »

arris69 wrote: check on your computer (from cmd prompt)

Code: Select all

nslookup www.samsungotn.net. samygo.tv
I am in Canada. Ok I checked using OpenDNS and it resolved properly, also resolved properly using my local ISP.

I set my Win7 adapter's DNS to 46.4.199.222 and it resolved "www.samsungotn.net. samygo.tv" perfectly. All other domains returned an error. Exactly as expected.

So I can't fathom why it won't work. Perhaps an ipchain or .htaccess rule to resolve all hosts to www.samsungotn.net would work. Just a guess.

I also connected the BD-D5100 directly to the modem, bypassing the router. Same results, when I check for firmware I get a "not connected to internet" error, and when I turn on the router with auto upgrades enabled, no upgrades appear. Thanks for your time and help, it's probably some weird quirk in the firmware.
moreins
Posts: 20
Joined: Sun Jul 10, 2011 1:18 am

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by moreins »

Hello

I can report that my BD-D5500 firmware (B-BRCMBSP) was successfully downgraded from 1022 to 1015 without any trouble at all!! :D
I can also confirm that the 1015.5 version DOES NOT CONTAIN CINAVIA CRAP :P :) :D


Downgrade progress went very smooth:

IP setup was according to my home network:
IP: 192.168.1.222
Netmask: 255.255.255.0
Gateway: 192.168.1.50
DNS:46.4.199.222

Downloading firmware:
It did get stuck at 90%-91% for 10 or 20 seconds, but it just continued downloading after this.
Image

"Updating" firmware:
Image

"Update" confirmation:
Image

The result :D :) :
Image


Thanks for all the effort you put into this! I was about to kill myself after i upgraded my player without knowing about the cinavia restriction.


Best regards
pichuca12
Posts: 7
Joined: Mon Jun 18, 2012 7:30 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by pichuca12 »

thank you very much .. achieve downgrade the firmware to version 1015 now ... I will see if I get the message Cinavia ... I will be confirming .. :mrgreen:

thx!!!
pichuca12
Posts: 7
Joined: Mon Jun 18, 2012 7:30 pm

Re: Firmware Downgrade D-Series (SamyGO Proof of Concept, BD

Post by pichuca12 »

D6500...!

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