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Tagged: Scrambled files new mother board
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Anonymous.
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September 16, 2013 at 1:20 pm #14917
Anonymous
InactiveHumax have just returned my HDR Fox T2 having replaced the mother board and updated software.
Previous recordings can now no longer be viewed. Error message is that the files are scrambled or the channel can’t be viewed.
Any suggestions? I’d prefer not to reformat the drive (Humax’s only suggestion)unless it’s absolutely necessary
September 16, 2013 at 1:57 pm #46933grahamlthompson
ParticipantIf humax replaced the motherboard then it’s likely that the box now has a new encryption key. As a result only new recordings will work. Afraid there is little chance of ever viewing them.
Welcome to the forum
September 16, 2013 at 2:53 pm #46934Anonymous
InactiveSeconded.
Its no good to you now, but if a similar situation arose in the future there could be a way out.
Install the custom firmware and decrypt your recordings, copy them to an external HDD, or PC. That way you will be able to transfer them back if required. As a bonus they will play on your PC too.
If ever you wanted to fit a larger HDD in you HDR (I don’t know what size disk you currently have) copying the existing recordings to another HDD then back to the new drive could be done easier. Although in this case, as the machine is the same one as the recordings were made, technically there wouldn’t be the need to decrypt first.
For more info on the custom firmware you could take a look over at Hummy.tv here: http://hummy.tv/forum/index.php
September 16, 2013 at 3:14 pm #46935Anonymous
InactiveThanks. Unlikely to need a larger HDD (currently 1TB).
I’ve previously successfully transferred files via USB but presumably they are decryted in this process as I haven’t had a problem playing the files on a variety of devices.
September 16, 2013 at 3:18 pm #46936Anonymous
InactiveYou never know. I am not a fan of the original Seagate 1TB HDD fitted to these models.

I recently purchased a brand new 1TB HDR, within a couple of weeks the HDD was showing increasing reallocated sectors. Not had much luck with Seagates in my PC over the years either. I am sure that there must be some happy Seagate customers out there….
September 16, 2013 at 3:24 pm #46937Martin Liddle
ParticipantLaurieR – 9 minutes ago »
I’ve previously successfully transferred files via USB but presumably they are decryted in this process as I haven’t had a problem playing the files on a variety of devices.
SD recordings will be decrypted but not HD recordings.
September 16, 2013 at 3:45 pm #46938Anonymous
InactiveDoes this mean I can transfer all my “scambled” SD files via USB or will the fact that the box has a new encryption key prevent this?
September 16, 2013 at 4:25 pm #46939grahamlthompson
ParticipantLaurieR – 36 minutes ago »
Does this mean I can transfer all my “scambled” SD files via USB or will the fact that the box has a new encryption key prevent this?
You can’t export SD recordings via usb as the box lacks the key to decrypt them. You can upload any SD files you transferred prior to the motherboard replacement. If you have deleted the associated .nts and .hmt files then there’s a free utility by Raydon that will re-create these (AV2HDR-T2). You don’t need these to play back on a T2 box but having them restores the full transport controls you get with a native recording.
September 16, 2013 at 4:25 pm #46940Anonymous
InactiveSorry that won’t work. The key used to decrypt the recordings, both SD and HD, is stored in hardware and is unique to the box. The SD recordings are decrypted while being transferred, but using the key that was used to encrypt them in the first place. Obviously, the key you now have is not the same as the one you had when the recordings were made. You have already proven that it won’t work otherwise you wouldn’t be here asking!
HTH.
September 16, 2013 at 6:02 pm #46941Anonymous
InactiveSorry, Graham, posts keep crossing. Didn’t mean to step on your toes.
September 16, 2013 at 6:42 pm #46942Anonymous
InactivePurely an academic question, but does anybody know whether the encryption hardware ID is the MAC address, in which case it could be spoofed, or a CPU ID such as the raspberry pi which they use to licence mpeg2? If it’s the MAC address and it can be spoofed then there’s little hope, possible maybe to recover the files, if it’s the CPU ID then I’m assuming there’s no hope to recover/decrypt
I guess Humax repairs shouldn’t format the hard drive, before returning, just in case there’s personal stuff, photos etc. on it.
More reason, then, to install the excellent custom firmware, I have auto decrypt running, as do most people here I guess (thanks to those involved).
Back to Wallace’s post, manufacturers used to give 3-5 years warranty on a drive (most of my older ones have 5). This seems to be 1-2 years now, so we can all see where it’s going. I’ve a Seagate 32MB drive (with its own 8bit card) that still powered up a year ago, but I’ve plenty of IBM drives over the years that’ve failed. Sometimes it’s a known problem and a firmware update is needed. Humax do seem to have had more then their fair share of problms with the 1TB model though.
I’ve had good experience with Samsung green power and who ever it is that has intellipower (WD) where the spin speed is variable, but around 5900rpm. Ironically I’ve also got an Hitachi Deskstar 5K3000 2TB green at the moment in my HdrFoxT2 which has been perfect and Hitachi storage took over IBM, which just goes to show that there’s no clear winner as far as Hard Drives go. I’d never buy a pvr drive as it makes no sense to me, rather a 4500 or 5400rpm or some form of intellipower with proper error correction.
Back to LaurieR, your old recordings are now duff, sorry, but put the custom firmware on the box and enter a new world.
September 16, 2013 at 6:44 pm #46943Anonymous
Inactivedamian – 1 minute ago »
…Back to LaurieR, your old recordings are now duff, sorry, but put the custom firmware on the box and enter a new world.
Well said.
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