WD Marvel Repair Tool

Утилита для восстановления HDD WD Marvel

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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 14 мар 2017, 15:58 
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    Yes, ROM image damaged :(
    No luck with UCommad or analog with TTL rom recovery function?


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 14 мар 2017, 16:08 
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    Зарегистрирован: 01 янв 2017, 10:28
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    Vlad писал(а):
    Yes, ROM image damaged :(
    No luck with UCommad or analog with TTL rom recovery function?


    With UCommand no luck unfortunately, i can access via terminal and read/write addresses, but i daren't write anything and don't have a clue where to start on that front :) are the VSC commands compatiable via terminal, do you know?

    Цитата:
    analog with TTL rom recovery function?

    sorry i don't follow, is this software? or a command?


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 14 мар 2017, 19:52 
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    In normal drive mode, drive supports VSC command via TTL
    In your case, I do not know
    You can download demo and test this ;)
    Analog of UCommand I mean, "WD Rom Recovery tool", if I remember rightly


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 15 мар 2017, 04:18 
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    Зарегистрирован: 01 янв 2017, 10:28
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    Vlad писал(а):
    In normal drive mode, drive supports VSC command via TTL
    In your case, I do not know
    You can download demo and test this ;)
    Analog of UCommand I mean, "WD Rom Recovery tool", if I remember rightly


    If WD VSC Commands are compatiable via a UART TTL adapter does that mean it's possible to select a COM port (instead of base ATA port etc) in WDMarvel and attempt to issue commands in this manner?

    As for U-Command Rom recovery tool, i tried all versions with no luck, the guy who made this tool is called "Canny Feng" this is the same dude who made DRT2012 drive software - looking at the support files - i think he ripped off MRT software.... or vice versa. i think he uses a drive definition list and if it's not an exact match (with the currently connected board) the tool won't even attempt communications.

    Other software which might work is the previously mentioned qtaosoft q3 drive repair tool - which is a newer uart-ttl compatiable tool, but their website is broken and i can only find the seagate version, there is a WD option but it's not usable/grayed out.

    Failing that i guess i'd have figure out what ARM core & architecture the MCU is using - find specific commands relevent to this and attempt to issue these arm specific commands via terminal - or use an ARM specific tool via UART.... but this is way out of my comfort zone - and software development ain't my game.

    interesting subject though - this is likely how the very expensive programs/tools (ACE, dolphin labs etc) are able to put drives into "kernel" , debug, and UART mode purely in software via the 8-pin connector at back of drive without having to touch config resistors & test points etc - they're just sending an ARM spefic command at the bootloader stage.... hence all the guff they give on not powering down the drive once in this mode. if someone had one of these expensive programs it would be relatively simple to find out what specific command is being issued.

    Vlad, on a side note, when using WDR-6 (in my Semi detect "mode") rather than seeing "Disk size -1152939097061330945 - -9007336Gb" using WDMarvel, i get a different number with WDR - off the top of my head i think it displays 2001 GB and a LBA value which is pretty close to what you'd typically expect (can't remember specifically as i'm not currently on my xp machine) Also unlike WDMarvel, with WDR i am able to write a Rom file - and it claims the write was successfull.... but i don't think it actually is. i'm also able to peform ram operations etc but i haven't played around with this in WDR much.

    thought this was interesting and worth mentioning, no idea if it has any relevence or not...


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 15 мар 2017, 06:24 
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    Severence писал(а):
    it's possible to select a COM port (instead of base ATA port etc) in WDMarvel and attempt to issue commands in this manner?

    Yes, set work mode to Serial TTL and select port

    Severence писал(а):
    i think he uses a drive definition list and if it's not an exact match (with the currently connected board) the tool won't even attempt communications.

    No, it wait while drive start to send "S" symbols, XModem protocol

    Severence писал(а):
    how the very expensive programs/tools (ACE, dolphin labs etc) are able to put drives into "kernel"

    Sends command for this via TTL

    Severence писал(а):
    Vlad, on a side note, when using WDR-6 (in my Semi detect "mode") rather than seeing "Disk size -1152939097061330945 - -9007336Gb" using WDMarvel, i get a different number with WDR - off the top of my head i think it displays 2001 GB and a LBA value which is pretty close to what you'd typically expect (can't remember specifically as i'm not currently on my xp machine) Also unlike WDMarvel, with WDR i am able to write a Rom file - and it claims the write was successfull.... but i don't think it actually is. i'm also able to peform ram operations etc but i haven't played around with this in WDR much.

    You simple read noise from unconnected SATA port :(


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 15 мар 2017, 10:11 
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    Зарегистрирован: 01 янв 2017, 10:28
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    Цитата:
    Yes, set work mode to Serial TTL and select port


    Ahh, i didn't realise your program had this functionality, i'll give a try

    Цитата:
    No, it wait while drive start to send "S" symbols, XModem protocol


    yes, i figured it received "S" character - which presumably indicates a safe mode/service mode signal? then ucommand cross references with a drive definition list - at least that's what it looked like to me looking at the files, if you check out the DLL files in the UCommand folder they are just plain text - although i could be remembering it wrong, like i said software ain't my stong point. and the plain text matches that of the files stored in the MRT Drive software.

    What would the character "E" represent in a terminal? Error maybe? or Empty ;) as that's what i'm getting.

    Цитата:
    Sends command for this via TTL

    of course

    Цитата:
    You simple read noise from unconnected SATA port :(


    Yeah that's what i thought, damn


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 15 мар 2017, 11:04 
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    This "DLL" files - programs for ARM MCU of drive, loader
    UCommand wait for SSSS
    Then send one "dll", this loader erases rom
    Then send second "dll" with rom image, second loader write rom image into MCU

    All problem to make rom recovery via ttl in this loaders


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 15 мар 2017, 11:12 
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    Зарегистрирован: 01 янв 2017, 10:28
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    Цитата:
    This "DLL" files - programs for ARM MCU of drive, loader
    UCommand wait for SSSS
    Then send one "dll", this loader erases rom
    Then send second "dll" with rom image, second loader write rom image into MCU


    Interesting stuff, doesn't ARM have some proprietary software beginning with a "U" i forget the name that does something similar for stockvARM based MCUs - would explain the name choice for U-command

    Vlad, i just tested out the TTL mode in your program - still not completely clear what i can and cannot do yet in this mode. But i did try detect - but get nothing other than "drive not defined", hitting "soft reset" and i can see the RX icon lightup green, so from the menu i tried "Rom" "Read Rom" the RX/TX icons are not lighting up - and after 2 minutes in log i get "ROM read successfully" checking the resulting flash file and it's 0 KB in size, which could be absolutely correct i suppose, my internal rom could be compleyely blank.

    What do you think?

    Out of interest what is the baudrate set to in this mode? as i don't see any indicator or option to change it


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 15 мар 2017, 11:16 
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    Looks like drive not want accept VSC via TLL in your case
    115200 N 8


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     Заголовок сообщения: Re: Ran WDMarvel and now getting no model and LBA 0 etc
    СообщениеДобавлено: 15 мар 2017, 13:18 
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    Зарегистрирован: 01 янв 2017, 10:28
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    that certainly does appear to be the case :(

    playing around - tried checking for modules and tx/rx light up rapidly - is that any indication that the drive is indeed at the very least responding?

    do you think "restart and block loading FW by changing Rom image" would work?

    slightly off topic question for you vlad, are you able to determine in software/commands if a particular WD drive is utilizing an internal flash rom, or an external flash rom or a parallel flash rom?

    If yes, are you able to instruct the mcu to use one or the other or both in software/ through commands?


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