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 Post subject: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 7:10 
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Joined: May 13th, 2017, 6:33
Posts: 9
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Hello to all,
I’ve been reading over the forums, but I didn't find similar symptoms as my drive.

This is the drive:
Model: MQ01UBD100
HDD Code: HDKBD29AYA31 T
Firmware: AB00/AX101U
PCB Revision: G3448A

Symptoms: The drive spins but the SO doesn't detect it. In particular on linux machine if I do "dmesg" on terminal I get:
Code:
[ 7852.284225] usb 3-1: new full-speed USB device number 6 using xhci_hcd
[ 7852.396267] usb 3-1: device descriptor read/64, error -71
[ 7852.612203] usb 3-1: device descriptor read/64, error -71
[ 7852.828138] usb 3-1: new full-speed USB device number 7 using xhci_hcd
[ 7852.940218] usb 3-1: device descriptor read/64, error -71
[ 7853.156152] usb 3-1: device descriptor read/64, error -71
[ 7853.372097] usb 3-1: new full-speed USB device number 8 using xhci_hcd
[ 7853.372320] usb 3-1: Device not responding to setup address.
[ 7853.576274] usb 3-1: Device not responding to setup address.
[ 7853.780051] usb 3-1: device not accepting address 8, error -71
[ 7853.892047] usb 3-1: new full-speed USB device number 9 using xhci_hcd
[ 7853.892256] usb 3-1: Device not responding to setup address.
[ 7854.096240] usb 3-1: Device not responding to setup address.
[ 7854.300034] usb 3-1: device not accepting address 9, error -71
[ 7854.300133] usb usb3-port1: unable to enumerate USB device


I tried to change USB 3.0 cable and also with an USB 2.0 cable, but it's the same.
I've thinked to buy another PCB but it's the first time doing anything like this and I just wanted to make sure that what I've in mind it's actually possible. Thanks, any help would be appreciated!


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 8:30 
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Joined: October 21st, 2007, 8:48
Posts: 1032
Find a compatible SATA PCB and transfer ROM's(IC602) then connect it directly via SATA interface.


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 8:55 
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Joined: November 29th, 2006, 10:08
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unknown wrote:
Find a compatible SATA PCB and transfer ROM's(IC602) then connect it directly via SATA interface.


Agree, that'll certainly make diagnosis easier. But it will almost certainly have other issues, media issues for sure and possibly damaged G-list.

Convert to SATA first and try to clone it with something like hddsuperclone (or whatever it's called, I don't use it) or ddrescue or media tools.

If that works then great, otherwise you'll need pro assistance which shouldn't be expensive AT THIS STAGE if it's not tampered about with too much.

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 11:19 
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On this post "http://forum.hddguru.com/viewtopic.php?p=178267#p178267" I found this solution to convert USB to SATA.
Quote:
There are 4 capacitors and 2 parallel Tx/Rx traces at about 2 o'clock to the bridge IC, above the "IC607" circuit reference (DSC03837.JPG). If you would like to convert your PCB to SATA mode, then remove these capacitors and wire your SATA cable to the MCU side.

Can I apply that solution on my PCB?

Otherwise I found like compatible SATA PCB, this: G003235C.
Thanks for the answers.


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 16:43 
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Joined: September 8th, 2009, 18:21
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Check the following voltages:
Attachment:
bridge_regs.jpg
bridge_regs.jpg [ 226.72 KiB | Viewed 1698 times ]

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 17:05 
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Joined: May 13th, 2017, 6:33
Posts: 9
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fzabkar wrote:
Check the following voltages:
Attachment:
bridge_regs.jpg
Thanks for replies
In order, from top to bottom of image:
0.49V~0.51V,
4.87V~4.96V,
3.60V~3.68V
(Measured with two different tester).


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 17:07 
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If the voltages are OK, try to invalidate the bridge firmware by shorting the Data Out pin to ground while you apply power to the PCB. If the VL711S bridge is alive, it should then revert to reporting VIA's Product and Vendor IDs via USB rather than Toshiba's.

Edit: Sorry, I just saw your latest post. Don't bother with this test.


Attachments:
W25X20CL.gif
W25X20CL.gif [ 40.15 KiB | Viewed 1693 times ]
IC606_Data_Out.jpg
IC606_Data_Out.jpg [ 211.31 KiB | Viewed 1693 times ]

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 17:18 
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ISTM that the bridge IC (VL711S) is faulty. Its internal LDO regulator should produce +3.3V from the 5V input. Also, its internal DC-DC converter should be producing +1.2V via the external inductor and capacitor (below and above my Vcore rectangle). Measure the voltage on the bridge side of the inductor. Also measure the resistance of the inductor (with power off), and the resistance of the capacitor (between Vcore and ground). It may be an idea to reflow the solder joints at the inductor and/or capacitor.

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 18:09 
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Joined: May 13th, 2017, 6:33
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fzabkar wrote:
Edit: Sorry, I just saw your latest post. Don't bother with this test.

Don't worry, rather thank you for the availability and the clear directions.

fzabkar wrote:
Measure the voltage on the bridge side of the inductor. Also measure the resistance of the inductor (with power off), and the resistance of the capacitor (between Vcore and ground). It may be an idea to reflow the solder joints at the inductor and/or capacitor.


The voltage on the bridge side of the inductor is 0.49V, the resistance of the inductor is 3.4Ohm, instead none continuity between Vcore and ground.


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 18:13 
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Assuming your measurements have been done correctly, then ISTM that the bridge IC is dead. If you are unable to transfer IC602 to your donor, then PCB suppliers such as hdd-parts.com will do it for free. Good luck.

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 13th, 2017, 18:31 
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fzabkar wrote:
Assuming your measurements have been done correctly, then ISTM that the bridge IC is dead. If you are unable to transfer IC602 to your donor, then PCB suppliers such as hdd-parts.com will do it for free. Good luck.

I hope so, unless my testers are to throw :)

In fact, I do not have the tools needed to transfer the IC and I've seen on that site, but there is only the SATA version, is it okay to take that one anyway?

Thank you so much for helping me out.


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 14th, 2017, 16:31 
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I'm not a DR professional, but when assessing compatibility, you need to match the MCU and motor controller ICs, AIUI.

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 14th, 2017, 17:44 
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Here is a pinout diagram for the VL711:

Attachment:
VL711_pinout.gif
VL711_pinout.gif [ 27.61 KiB | Viewed 1540 times ]

I would measure the voltage pins - 10, 12, 13, 16, 24, 27, 33, 34, 37-40. I would probe the external components rather than the IC's pins (less risk of shorts).

Pin 41 (RESET_) should be high in normal operation. If Vcore is below 0.9V, then the internal reset logic pulls this pin low. This pin can also be connected to an external reset generator. The 4-pin IC near pin #1 of the bridge could be a reset supervisor. I would measure the reset pin (41).

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 14th, 2017, 20:00 
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"...on linux machine if I do "dmesg" on terminal..." I'm a beginner; can this command by done by a Puppy Linux usb or dvd boot?

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 15th, 2017, 4:48 
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fzabkar wrote:
I'm not a DR professional, but when assessing compatibility, you need to match the MCU and motor controller ICs, AIUI.

You may not be, but surely you are more experienced than me :wink:
Already finding the component, though hypothetically, gives me some satisfaction, because in the end I'm honest, I don't care about the data of the HD, but I just want to know why it's no longer recognized.

fzabkar wrote:
I would measure the voltage pins - 10, 12, 13, 16, 24, 27, 33, 34, 37-40. I would probe the external components rather than the IC's pins (less risk of shorts).

Pin 41 (RESET_) should be high in normal operation. If Vcore is below 0.9V, then the internal reset logic pulls this pin low. This pin can also be connected to an external reset generator. The 4-pin IC near pin #1 of the bridge could be a reset supervisor. I would measure the reset pin (41).

I don't have such precise tools to allow me to perform a reliable control and I don't know which external components are connected to the pins to avoid short circuit, but I want to try. As soon as I can get those measurements I let you know, thank you again!

RolandJS wrote:
"...on linux machine if I do "dmesg" on terminal..." I'm a beginner; can this command by done by a Puppy Linux usb or dvd boot?

Yes, both have dmesg command. Just to know, the dmesg command is used to write the kernel messages in Linux and other Unix-like operating systems to standard output.


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 27th, 2017, 16:45 
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Joined: May 13th, 2017, 6:33
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fzabkar wrote:
Here is a pinout diagram for the VL711:

Attachment:
The attachment VL711_pinout.gif is no longer available

I would measure the voltage pins - 10, 12, 13, 16, 24, 27, 33, 34, 37-40. I would probe the external components rather than the IC's pins (less risk of shorts).

Pin 41 (RESET_) should be high in normal operation. If Vcore is below 0.9V, then the internal reset logic pulls this pin low. This pin can also be connected to an external reset generator. The 4-pin IC near pin #1 of the bridge could be a reset supervisor. I would measure the reset pin (41).


Hi fzabkar, I've been able to do the measurements: [PIN] [Volt]
10 0,50V, 12 5,04V, 13 4,83V, 16 0,51V, 24 4,83V, 27 0,52V, 33 3,34V, 34 5,05V, 37 0,52V, 38 0,52V, 39 0,52V, 40 2,62V, , 41 3,70V.
I also made the first measurements: Vcore 0,69V, +5V 5,04V, Vio 3,41V


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File comment: In order not to risk the short circuit
20170513_125950.jpg
20170513_125950.jpg [ 307.89 KiB | Viewed 1285 times ]
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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 27th, 2017, 17:40 
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I don't understand why the Reset pin is high when the Vcore is low. I also don't understand why your Vcore measurement of 0.69V differs from the VDD12 voltages (~ 0.5V). :?

Which location are you using as your 0V reference?

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 27th, 2017, 18:36 
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fzabkar wrote:
I don't understand why the Reset pin is high when the Vcore is low. I also don't understand why your Vcore measurement of 0.69V differs from the VDD12 voltages (~ 0.5V). :?

Which location are you using as your 0V reference?


Does it refer to mass? (GND?) If so, I'm using the usb jack carcass.

I measured again at the same time Vcore and VDD12 and it's the same (in this case 0,68V). :/

(The measurements will definitely not be very accurate, because I have adjusted two pins to the tester's tips...because I do not have thin tips :( )


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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 29th, 2017, 15:25 
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If the voltage across C317 (Vcore) is 0.69V rather than 1.2V, then ISTM that the bridge must be faulty, despite the high level on the Reset pin. ISTM that a PCB swap plus firmware transfer would be worth a try.

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 Post subject: Re: Toshiba MQ01UBD100 (1TB USB 3) not detected but spins
PostPosted: May 29th, 2017, 17:42 
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fzabkar wrote:
If the voltage across C317 (Vcore) is 0.69V rather than 1.2V, then ISTM that the bridge must be faulty, despite the high level on the Reset pin. ISTM that a PCB swap plus firmware transfer would be worth a try.


Before trying to change the PCB and exchange bios, I would like to try your solution:
"There are 4 capacitors and 2 parallel Tx / Rx traces at about 2 o'clock to the bridge IC, above the" IC607 "reference circuit (DSC03837.JPG). These capacitors and wire your SATA cable to the MCU side "
So (I think) to confirm the problem to the bridge.

In any case thanks a lot for the help!!


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