| Author |
Message |
Forum: Conventional hard drives Topic: Is U14 EEPROM swap necessary for MyPassport board swap? |
| GarrettVD |
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Posted: August 9th, 2018, 15:46
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Replies: 6
Views: 5935
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| ... A board (more specs below). My end goal here is just to recover the data. Board appears to have some kind of water/chemical corrosion damage. Both U12 and U14 EEPROM chips are Winbond 25x20blnig 2MBit/256Kb chips. I was able to sucessfully backup the contents of the U12 ROM chip using a CH341A ... |
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Forum: Conventional hard drives Topic: WD40NMZW-11GX6S1 ROM/PCB Swap Issues |
| data-medics |
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Posted: August 6th, 2018, 10:18
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Replies: 17
Views: 11612
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| ... other issue. what is the purpose of the 2nd large Winbond chip? There's really nothing on the PCB you need to be concerned with other than the U12. That's the only drive specific code on that ROM chip. But, to satisfy your curiosity, that other Winbond chip is the RAM. It's possible that the ... |
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Forum: Conventional hard drives Topic: Unable to retrieve data after PCB swap |
| uniquegeek |
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Posted: May 31st, 2018, 18:16
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Replies: 19
Views: 11107
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| ... I diagnosed the drive as having a faulty motor controller, so I ordered a new PCB for swap. (An identical 2060-701640-002 Rev A). I transferred U12 (firmware chip), installed on the drive, and it sprung to life as soon as it was plugged in. Customer did not indicate whether this drive was being ... |
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Forum: Conventional hard drives Topic: WD800BB PCB swap to recover data |
| lukee85 |
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Posted: May 30th, 2018, 14:48
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Replies: 6
Views: 8382
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| ... white sticker: 2061-701292-A00 BB HDD is fine. When I swap the PCB patient starts running but stops after a few seconds. Should I change U12 or PCBs are not compatibile? Thanks for your help in advance. |
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Forum: DFL support forum Topic: DFL-FRP PCB REPAIRING |
| fzabkar |
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Posted: May 14th, 2018, 16:28
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Replies: 25
Views: 61580
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| Here are my guesses as to the identities and functions of the ICs on the logic PCB: U1/U12 = 24Cxx U2/U13 = CY7C68013A U3 = XR22404 U4 = 8-bit microcontroller ? U5 = ? U6 = ? U7/U8 = LDO regulator or load switch ? U9 = transceiver ? U10 = FT232R U11 = 88SA8040 / 88SA8052 ... |
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Forum: Flash storage, SSD Topic: SanDisk X100 256G no BIOS detection |
| fzabkar |
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Posted: May 10th, 2018, 16:09
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Replies: 68
Views: 71075
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| @alindumitru46, it appears that none of the regulators (U1, U12, U17) are getting a 5V supply, yet +5V is present at the MOSFET switch (U119). This implies that the supplies are being switched by a second stage. Can you tell us the markings on U121, U123, ... |
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Forum: Conventional hard drives Topic: WD My Passport 2TB control board failure |
| khalestorm |
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Posted: April 26th, 2018, 11:59
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Replies: 36
Views: 20532
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| ... I'll likely go this route before I shell out money for DR. I've purchased the replacement PCB p/n '2060-771961-000 REV P1', I'm going to swap the U12 BIOS from the old to the new PCB and then fire it up after purging drive contaminants. @fzabkar is this what you'd recommend or something else? ... |
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Forum: Conventional hard drives Topic: WD My Passport 2TB control board failure |
| fzabkar |
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Posted: April 25th, 2018, 17:34
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Replies: 36
Views: 20532
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Buy a replacement PCB and transfer the chip at location U12 (if it exists) from the old PCB to the new PCB. Some PCB suppliers (eg hdd-parts.com) will do this for no additional cost.
However, before you do this, show us photos of both sides of the PCB. |
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Forum: Conventional hard drives Topic: WD800BB PCB swap to recover data |
| pcimage |
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Posted: April 20th, 2018, 14:46
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Replies: 6
Views: 8382
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| Thanks If i`ll find same hdd ( same model, same dcm, same pcb) i still need to swap u12 rom from my broken drive to donor pcb? some times you can get lucky, and you'll not have to transfer the U12 This is true, especially if the DOM is close. If if clicks with new ... |
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Forum: Conventional hard drives Topic: WD800BB PCB swap to recover data |
| jermy |
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Posted: April 20th, 2018, 9:14
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Replies: 6
Views: 8382
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eitha wrote: Thanks
If i`ll find same hdd ( same model, same dcm, same pcb) i still need to swap u12 rom from my broken drive to donor pcb?
some times you can get lucky, and you'll not have to transfer the U12 |
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Forum: Conventional hard drives Topic: WD800BB PCB swap to recover data |
| hdd_sand |
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Posted: April 20th, 2018, 7:47
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Replies: 6
Views: 8382
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eitha wrote: Thanks
If i`ll find same hdd ( same model, same dcm, same pcb) i still need to swap u12 rom from my broken drive to donor pcb?
Yes, you do |
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Forum: Conventional hard drives Topic: WD800BB PCB swap to recover data |
| eitha |
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Posted: April 20th, 2018, 5:01
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Replies: 6
Views: 8382
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Thanks
If i`ll find same hdd ( same model, same dcm, same pcb) i still need to swap u12 rom from my broken drive to donor pcb? |
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Forum: Conventional hard drives Topic: WD800BB PCB swap to recover data |
| eitha |
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Posted: April 20th, 2018, 4:22
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Replies: 6
Views: 8382
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| ... DCM: HSBHCTJCH PCB board is: 2060-701292-000 rev a ( white sticker: 2061-701292-00 AP) is just diffrent DCM. model, pcb same. when i change u12 (bios) it will work to recover data? best regards |
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Forum: Conventional hard drives Topic: WD My Book Duo controller failure |
| metafizx |
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Posted: March 28th, 2018, 17:11
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Replies: 34
Views: 21989
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| ... voltages. The SATA pins are pretty tight for my meter, so I'll have to figure out a way. Here is what I measured: U11 Vin 5v Vout 5v (TPS2022D) U12 Vin 5v Vout 5v C127 2.48v C128 2.48v L18 2.5v C129 1.049v C130 1.049v L19 1.05v C10 5v C11 5v C98 5v (both) C78 5v C14 5v C37 1.2v C36 1.2v c89 ... |
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Forum: Conventional hard drives Topic: PCB swap on a WD10EAVS |
| abolibibelot |
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Posted: March 8th, 2018, 13:19
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Replies: 23
Views: 20280
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| ... information in the transposed chip, and the native ROM inside the MCU (since the replacement board definitely does not have an external chip in U12) ? Only if you are extremely lucky will the PCBs work without swapping the ROM chip or write the native ROM code on the new PCB as there will be ... |
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Forum: Conventional hard drives Topic: Seagate ST3200542AS showing Size 0 |
| loopingz |
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Posted: February 27th, 2018, 18:42
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Replies: 21
Views: 22234
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| ... having to open. Price is important here. I am trying to learn too. How are the backups of sysfile/modules usually done? Is it the info stored in 'U12' I used to consider Seagate as kind of safer (I enjoyed the IBMs bad series 15 to 20 years ago, doing my first siftware recoveries). I am not ultra ... |
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Forum: Conventional hard drives Topic: WD800JD-00JNA0 |
| Abdul Rauf |
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Posted: February 13th, 2018, 4:14
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Replies: 4
Views: 4548
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Hello,
hard disk with following details
Model WD800JD-00JNA0
DCM=HSB
PCB=2060-001293-000
pcb is damaged, i replaced u12 chip but its showing following hdd
WDC-ROM SN#XYZ ---
WDC ROM MODEL --SABRE--
74 GB
Any suggestion?
Thanks |
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Forum: Conventional hard drives Topic: Post subject: Western Digital TTL Port |
| Spildit |
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Posted: January 13th, 2018, 8:20
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Replies: 6
Views: 6148
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| At least some of your PCBs have EXTERNAL ROM CHIP at U12 !!!! Why don't you use something like this ? http://www.hddoracle.com/viewtopic.php?f=110&t=1738 :D :D :D I don't know if U-Command will work on PCBs with external ROM. I did never try that. ... |
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Forum: Conventional hard drives Topic: PCB swap on a WD10EAVS |
| abolibibelot |
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Posted: January 11th, 2018, 5:55
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Replies: 23
Views: 20280
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| ... MCU (inside the MCU). From what I could gather in the replies I got above, and the links provided, both units do not have an external ROM chip in U12, so, according to what you say here, they must have ROM code embedded in MCU. In short, does that mean that the PCB swap can not work without issuing ... |
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Forum: Conventional hard drives Topic: PCB swap on a WD10EAVS |
| abolibibelot |
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Posted: January 9th, 2018, 22:41
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Replies: 23
Views: 20280
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| ... component(s) ? @BGMan & fzabkar Your drive belongs to "Kermit" family. All drives of this family have an external ROM chip ( U12). You have two options: 1. To swap the ROM chips by desoldering / resoldering 2. To transfer the ROM content from one PCB to the other by using ... |
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