MSDU11 fw format for Q80R
Posted: Mon Dec 27, 2021 9:45 pm
Hi All,
I'm not sure if there's much life in these forums, but wanted to try reaching out anyway. I've got a Q80R (2019) TV. The firmware packages that it uses are marked "MSDU11" which appears to be the next version after MSDU10 discussed here: viewtopic.php?t=6262.
The new header format is more-or-less the same as what robert documented 8 years ago. I've attached "format.txt" which revises his work to reflect the updated format.
The big difference seems to be that the entire payload is bundled up as a single OpenSSL-encrypted block. The header still enumerates a number of subsections, but none of them are visible.
That's where I've run into a brick wall. I'm unable to decrypt using any of the keys found in earlier SamyGo extractors. Not really surprising; why wouldn't Samsung change the key knowing that earlier ones are out there?
If anyone has the key for this firmware, would be great to receive via PM. Alternately, a clean copy of a Q80R firmware dump would be helpful as a start for RE. I'm pretty hardware-savvy but tearing up this TV would not make me popular with the family, so extracting/modifying flash contents is way out. Maybe if there's a smaller, cheaper model with the same key...?
Thanks,
Allen
I'm not sure if there's much life in these forums, but wanted to try reaching out anyway. I've got a Q80R (2019) TV. The firmware packages that it uses are marked "MSDU11" which appears to be the next version after MSDU10 discussed here: viewtopic.php?t=6262.
The new header format is more-or-less the same as what robert documented 8 years ago. I've attached "format.txt" which revises his work to reflect the updated format.
The big difference seems to be that the entire payload is bundled up as a single OpenSSL-encrypted block. The header still enumerates a number of subsections, but none of them are visible.
That's where I've run into a brick wall. I'm unable to decrypt using any of the keys found in earlier SamyGo extractors. Not really surprising; why wouldn't Samsung change the key knowing that earlier ones are out there?
If anyone has the key for this firmware, would be great to receive via PM. Alternately, a clean copy of a Q80R firmware dump would be helpful as a start for RE. I'm pretty hardware-savvy but tearing up this TV would not make me popular with the family, so extracting/modifying flash contents is way out. Maybe if there's a smaller, cheaper model with the same key...?
Thanks,
Allen
Regarding f-secure it's mostly old stuff, they did some good research but it's not in this pdf 