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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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u14 dead

February 3rd, 2017, 0:07

wd my passport 1tb
i have killed the U14 rom chip that is related to the USB bridge
can i found the firmware for that chip somewhere(this firmware it is specific for each hdd?)
thank you

Re: u14 dead

February 3rd, 2017, 1:43

What is your purpose?
If you want to recover data you don't need U14.

Re: u14 dead

February 3rd, 2017, 4:09

You can collect U14 from another PCB if you still need it. For DR it's not required as replied.

Re: u14 dead

February 3rd, 2017, 20:41

yes, i am trying to recover some data.
usb-sata bridge is dead and i have killed the u 14
what kind of information is stored in u 14?
what are my options without u14?
i have a very good elecronical skils (matherboard repaire) but not in hdd repaire,so i need a little bit of help and information
thank you

Re: u14 dead

February 3rd, 2017, 21:03

I think that you can either buy another SATA-USB board bridge that have the exact same number as yours to decrypt your data or you can try to image your drive to a image file and see if ReallyMine can decrypt it.

u14 have code to handle the encryption and the USB to SATA bridging, it doesn't have drive specific adaptives and and code, so as long as you don't damage the ROM chip on the DRIVE PCB you should be good to go ...

As a matter of fact even if you damage the ROM on the drive PCB it is not the end of the world on WD drives ...

Re: u14 dead

February 3rd, 2017, 21:11

i have a lot of wd hdd sata matherboards with the same configuration of ram, chipset, and motor driver
i supose that i can change only the bios chip? :!:
what is the next step?
thank you

Re: u14 dead

February 3rd, 2017, 21:47

Ok ...

What is the full model of the drive ???

Are you saying that you klled the U14 chip on the DRIVE PCB ? Meaning the drive PCB is USB only ?

I was under the impression that you have a external box with a bridge pcb independent from the drive.

If you killed the U14 and the USB bridge on the drive PCB then you can as you mentioned use a compatible SATA pcb and/or convert the USB PCB to SATA by soldering sata tx/rx pairs from the PCB to a SATA port bypassing the bridge USB. But as you stated that you have many SATA PCBs check here :


Just get a PCB that is compatible with your USB one and swap the ROM chip or re-program ROM on the new SATA PCB.

Now remember the drive will work but the DATA WILL BE ENCRYPTED. So you will have to IMAGE the drive to another one and try to decrypt it with ReallyMine.

Other option will be to buy another PCB from the same model/family of drive (or that have the exact PCB number) and swap U12 to it. This way if the drive doen't have any further problem apart from damaged USB bridge on the old PCB it should work and decrypt data on-the-fly.

Re: u14 dead

February 3rd, 2017, 22:18

hdd model: WD10JMVW-11S5XS0
PCB: 2060-771801-002 rev.A with JMS 538S

and sata board that i found
PCB: 2060-771823-000 rev.A
ReallyMine will decript data for 100%?

Re: u14 dead

February 3rd, 2017, 23:20

771823 (SATA) is fully compatible with 771801 (USB).

ReallyMine might not decrypt your data. It only supports some types of encryption and encryption chips.


It should support AES-256-ECB JMicron

Re: u14 dead

February 4th, 2017, 3:10

JMS538S is supported by reallymine. The encryption is handled by the bridge, not the drive.

In fact, in this case, the absence of U14 would be an advantage. That is, when U14 is removed, the bridge should identify itself as a JMicron rather than a Passport, and the whole drive, including the SmartWare area, should now be visible to the OS.

Re: u14 dead

February 6th, 2017, 15:08

can i change only the jmicron chip

Re: u14 dead

February 6th, 2017, 15:29

Use 771823 with reallymine (after transferring U12).

Re: u14 dead

February 6th, 2017, 16:58

If you have another one the same family and capacity you can take an image from patient to donor via SATA interface and convert the donor to USB interface with it's original USB PCB.
Sure if really mine doesn't work.
Good luck.

Re: u14 dead

February 6th, 2017, 23:35

what do you mean same family?
the same number of board or the same chip(jmicron),
i have a lot of boards with j micron but different year
thank you

Re: u14 dead

February 7th, 2017, 11:30

I meant same model and capacity.
Do you have any DR tools (PC3K, MRT....etc)?

If not, convert it to SATA interface and try reallymine first

Good luck.

Re: u14 dead

February 10th, 2017, 20:18

no i don<t have dr tools
so, heads are dead too.
how can i change them
ther is a sn or i can take from the spare 1tb hdd
some inf please

Re: u14 dead

February 10th, 2017, 20:33

Without any proper tools, you're just wasting your time. You'll never get the drive stable enough after replacing heads to extract all the data.
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