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MartPwnS
Posts: 6 | Last online: 02.04.2017
Date registered
01.09.2017
Sex
not specified
    • MartPwnS has written a new post "Samsung SM951 (AHCI/NVME) Firmware update" 01.11.2017

      nanddump only works on MTD Devices (char device with major number 90 in this specific case)

      Currently i dont know about any way to get access to the internal controller nand, but even if we get access the nvme specs allow for multiple firmware slots, so we kinda need the proper region on the nand, offset and size.

    • MartPwnS has written a new post "Samsung SM951 (AHCI/NVME) Firmware update" 01.10.2017

      Zitat von kochevnik im Beitrag #26
      Does anyone have vendor specific commands for SM951 by any chance? AHCI or NVMe?

      Thank you

      http://www.mullet.se/dokument/SM951_M.2_...neral(NVMe).pdf (Not sure if its okay to share that i just found this while googling.)

      Does not look like they have specific commands.
      They seem to follow nvme spec (as i guessed by taking apart that tool.)

    • MartPwnS has written a new post "Samsung SM951 (AHCI/NVME) Firmware update" 01.10.2017

      Zitat von Fernando im Beitrag #23
      Zitat von MartPwnS im Beitrag #22
      I hope someone releases a tool for this.
      You cannot expect such tool from this Forum.
      It is the task of Samsung resp. the manufacturer of your mainboard/system.
      Yeah i know that.
      I just said that i want such a tool in general i am well aware that noone in this forum can provide one.
      The thing is, if dell,lenovo etc dont provide firmware updates for these devices (SM and PM951) they will most likely crash during certain operations once the patches i linked make it to mainline linux. So thats the only hope i have left someone at samsung notices these patches and pressures the manufacturers to fix these issues (giving us another tool to update the firmware). As of now dell has never issued a firmware update for the PM951 nor for the SM951.

      Zitat von kochevnik im Beitrag #24
      Thank you for your reply. I will ask him. Did anyone try to do that before? Since it's not my system, I'd like to know if this will work before asking him to invest his time.

      Ask whom?
      If you meant to contact Andy Lutomirski dont do it.
      I already wrote him and i dont want him to get annoyed because its not his job to fix issues with buggy device firmware i hope he somehow manages to find a fix or gets samsung to release a firmware update.
      However it might be worth a try to ask the devs of https://github.com/linux-nvme/nvme-cli
      if theres a way in the nvme specs that allows pulling the firmware from the device.

      EDIT by Fernando: Unneeded parts of the fully quoted post removed (to save space)

    • MartPwnS has written a new post "Samsung SM951 (AHCI/NVME) Firmware update" 01.09.2017

      Yep thats exactly what i did and i saw no way to dump the controller firmware builtin.
      (Also did all the other exes from samsung + the gui) its a simple flasher no chance sadly.
      The APST nvme problems on linux will bite my ass if we get no firmware updates :(
      https://git.kernel.org/cgit/linux/kernel...7ababacb26c708c

      I hope someone releases a tool for this.

    • MartPwnS has written a new post "Samsung SM951 (AHCI/NVME) Firmware update" 01.09.2017

      The tools you linked have no way to read from the NAND flash they can just "Download" aka flash a firmware file in chunks to the controller.
      Is there any proof that lenovo offers a possibility to backup the old firmware ?
      Because having the decompiled C code in front of me that seems unlikely...

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