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Harmony #1
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@bousqi 👍 |
Hi @alexmayo Sorry for the late response, I've been quite busy. Do you have to links to share on the procedure to perform what you have been doing ? You mention BIG_SKIN_NAV.bin.inf as one file for which you failed to compute CRC. How do you perform the file update ? through a file structure on a token with UpgPlugin.out ? |
Hey @bousqi! Thanks for the response. The SMEG+iv2 seems to be identical in file structure, the only thing is that since an update from 2017 the telnet connection is permanently closed. So far I have only tried updating the system via a usb stick directly into the car and have had no success at all as I have been unable to figure out how to generate the correct crc for the files. The update fails as soon as a file is modified, since the checksum does not pass validation. The latest firmware can be downloaded from https://mega.nz/#!ZBNxkRpT!Pw7MuZZIvU_jjpVpIerpFftyIzZkILR7Vo1CemllImE This contains all of the update files. The interesting thing is that it will let you install the update over and over again, even if the version is the same. This means that harmonies, interface sounds can be updated by simply changing the update files and updating. I am stuck on how to create the CRC files, are you able to explain how you do it? I would love to try and change the background of my interface! Cheers |
Ok got it. That being said, from what I've seen in the Update Process analysis, is that there are many files that are aimed to check the firmware integrity even before the update. |
Great thank you! Yes I plan to compute the CRC for the harmony files first and check that it comes back with the correct result. If it does, I will try changing the image slightly and saving in the exact same format. I will have a play this weekend and let you know how it goes! |
I have started a list of useful tools I am finding, and instructions on how to use them: https://github.com/alexmayo/SMEG_PLUS/tree/master/tools |
The telnet connection is still possible with fw 6.4.xx , but you need connect with rs2ttl dongle to the board... here upgrade log to 6.4 |
Hi!
First of all - great work on unpacking SMEG PLUS! I have a 2017 DS4 and have been spending the past few weeks trying to alter the Harmony 'Rubis' using an update USB stick. I can change the image within the harmony, however once it is packed up and placed onto a USB stick, the system does now allow the update to complete, most likely because the CRC no longer validates. Could you explain how I could go about generating the CRC found within BIG_SKIN_NAV.bin.inf that is located within HARMONY/BigHarmony_6 in the latest update file for SMEG +IV2?
Best,
Alex
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