Xor this IOEDC Syndrome with Host LBA to find actual sector written = 000012AD
Starting LBA of RW Request=000B93741C Length=00001B6C
ProcessRWError -Write- at LBA 000B9384CE Sense Code=44808780Out: SkipIOEDC: 0B9384CE
Xor this IOEDC Syndrome with Host LBA to find actual sector written = 0000129D
Starting LBA of RW Request=000B93741C Length=00001B6C
ProcessRWError -Write- at LBA 000B9384CF Sense Code=44808780Out: SkipIOEDC: 0B9
Model : SAMSUNG HM100UX
Serial : C5091E861A5DDY
Firmware : 2AM10001
Capacity : 1 000 GB (1 953 525 168)
Hello Friends!
Today we would like to briefly review how to solve the LED 1A04 error that comes up frequently during the data recovery process from Samsung drives. In the beginning, it looks like that the FW is readable, but then something prevents the drive initialization and it just hangs. So, you can’t read the data as well as Service or User Areas.
Let’s consider this issue on the example of Samsung HM321HI 2.5″ drive.
First of all, you should start the correct utility. Select the 2.5″ M7E drive family. Please note, that the terminal must be connected.
The drive is in the Busy state, the utility initialization was terminated:
000000CE FAddr:0028E257
LED:000000CE FAddr:00280575
LED:000000CE FAddr:00280575
Error spinning up HDD via terminal!
Error : Terminal : reply timeout error Drive timeout 10000ms
Invalid Diag Cmd
F3 T>/T
F3 T>i4,1,22
F3 T>m0,2,2,,,,,22
Rst 0x20M
ASCII Diag mode
F3 T>/2
F3 2>Z
Spin Down Complete
Elapsed Time 0.141 msecs
F3 2>
ASCII Diag mode
F3 T>/2
F3 2>U
Spin Up Complete
Elapsed Time 6.917 secs
F3 2>/1
F3 1>N1
F3 1>/T
F3 T>
Rst 0x20M
ASCII Diag mode
F3 T>m0,2,2,,,,,22
Max Wr Retries = 00, Max Rd Retries = 00, Max ECC T-Level = 14, Max Certify Rewr
ite Retries = 00C8
User Partition Format 3% complete, Zone 00, Pass 00, LBA 00004AA5, ErrCode 000
00080, Elapsed Time 0 mins 30 secs
User Partition Format Successful - Elapsed Time 0 mins 30 secs
Zone re-format was skipped.
F3 T>
RW cmd 0001 req = 101A 0DED 0000 0000 0001 0000 0000 0000 3664 0000 D6CF 0001 6300 0000 6300 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
RW opts = 00028101
RW mode = 0000000000000000
BUF opts = 00003664
cyl=000931A3
Op=03A5
RW cmd 0002 req = 66CB 3B23 0000 0000 0001 0000 0000 0000 3664 0000 D6CF 0001 6300 0000 6300 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
RW opts = 00028102
RW mode = 0000000400000480
BUF opts = 00003664
Resp=0001
cyl=0001B5E1
Op=00A5
RW cmd 0002 req = 101B 0DED 0000 0000 092A 0000 0000 0000 1664 0000 D6D7 0001 6300 0000 6300 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
RW opts = 00028101
RW mode = 0000000000000000
BUF opts = 00001664
Resp=0001
cyl=0001B5E2
Op=00A4->[LBA=000000000DED101B]'40000087'
RW Err = 40000087
RW cmd 0001 req = 101B 0DED 0000 0000 0001 0000 0000 0000 3664 0000 D6D7 0001 6300 0000 6300 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
RW opts = 00028101
RW mode = 0000000000000000
BUF opts = 00003664
cyl=000931A3
Op=03A5
RW cmd 0002 req = 66CC 3B23 0000 0000 0001 0000 0000 0000 3664 0000 D6D7 0001 6300 0000 6300 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
RW opts = 00028102
RW mode = 0000000400000480
BUF opts = 00003664
Resp=0001
cyl=0001B5E1
Op=00A5
RW cmd 0002 req = 101C 0DED 0000 0000 0929 0000 0000 0000 1664 0000 D6DF 0001 6300 0000 6300 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
RW opts = 00028101
RW mode = 0000000000000000
BUF opts = 00001664
Resp=0001
cyl=0001B5E2
Op=00A4->[LBA=000000000DED101C]'40000087'
RW Err = 40000087
RW cmd 0001 req = 101C 0DED 0000 0000 0001 0000 0000 0000 3664 0000 D6DF 0001 6300 0000 6300 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 000
Bad cmd: 0x0101
>
T>F”SerialDebugLevel",0
Show add. diag. msg in Terminal [NO] :
T>F"SerialDebugLevel",0
Offline defect sparing [NO] :
T>F"OFFLINE_SPARING_ENABLED",0
Deferred defect hiding [NO] :
T>F"DAR_ENABLED",0
Auto Reallocation (writing) [NO] :
T>F"WRITE_SPARING_ENABLED",0
Auto Reallocation (reading) [NO] :
T>F"READ_SPARING_ENABLED",0
Disable IDLE activities [YES] :
T>F"DISABLE_IDLE_ACTIVITY",1
PCB board 100714259 for Seagate hard disk drive ST4000DX001.
ERROR: Flash Led 9C2A - ALF-SetupForComboMode Failed - Invalid Mode
Clump: 101A
Combo Mode Bit: 0002
Clump Parametrics:
Clump = 00A6
DataType = 0000
ModeFlag = 01
EraseCount = 00000000
EraseFailCount = 00
ProgramFailCount = 00
WeakReadCount = 00
UncorrectableECCError = 00
---SOC PSM Command History---
Cmd#/PsmCmd Clump Offset Length LbaMid LbaLow LbaBits39To32 Options Status DestClump DestOffset
0001 00A6 06E0 0000 0000 0010 0000 C000 0080 C207 D23E
0601 00A6 06D0 0010 0000 0000 0000 C000 0080 C207 D23E
0500 0001 04D0 0001 0000 0000 0000 C000 0080 C207 D23E
0401 0001 04D0 0001 0000 0000 0000 C000 0080 C207 D23E
0300 0001 04C0 0001 0000 0000 0000 C000 0080 C207 D23E
Flash Statistics:
BridgePSMDriverID = 0x0006
FlashID ECA7 947E 64C4
Flash Manufacturer: Samsung
Flash Capacity = 00008 GB MLC
Combo Mode
NumberOfClumps = 0x0800
LBAsPerCluster = 0x0010
LBAsPerClumpMLC = 0x2000
LBAsPerClumpSLC = 0x1000
ClustersPerClumpMLC = 0x0200
ClustersPerClumpSLC = 0x0100
DefragClumpThresholdInSectors = 0x1000
UserSLCMaxSizeInClumps = 0x0300
NumberOfPotentiallyWrittenClusters = 0x0004
DefectListRevisionKey 0x0002
SLC Clumps 0x0342
ActiveClumpInfo
Active Journal Clump 00A6 Offset 06E0
Active Anchor Clump 0001 Offset 04D0
--- ALF RFS Recorder ---
--- Recorder prints backwards: newest to oldest ---
IARCount Status Clump ClumpSentinel FunctionOrigin
ALFRecorder:
End of ALF Recorder Trace
Request spin / disc table recovery
Rst 0x20M
RW: Disc Ctlr Initialization Completed.vYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvY
SIM Error 1002RW subfile error 2044vYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvY
SIM Error 1002
No HOST FIS-ReadyStatusFlags 2002A1A5
ASCII Diag mode
Rst 0x10M
Servo Processor Is Reset.
RW: Disc Ctlr Initialization Completed.
ExecuteSpinRequest
vYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvY
SIM Error 1002
(P) SATA Reset
SIM Error 1002 PASSvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvY
SIM Error 1002vYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvY
SIM Error 1002WriteDCOInfo FAILED during Initialization
RW: Error processing Performance Parameter File: 203C
(P) SATA Reset
SIM Error 1002WriteDCOInfo FAILED during Initialization
RW: Error processing Performance Parameter File: 203C
SIM Error 3005vYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvYvY
SIM Error 1002
No HOST FIS-ReadyStatusFlags 2002A1A5
ASCII Diag mode
F3 T>
ASCII Diag mode
SOLVED CASE
28 35 BACKUP
HEAD 0
M
Model : ST1000LX015-1U7172-SSHD
Serial : WDEPE2Q8
Firmware : SHM3
Capacity : 1 000 GB (1 953 525 168)
Hello guys!
The issue with a damaged NAND chip is very popular for the ST1000LX015 and ST2000LX001 models. At the ACE Lab Online Technical Conference 2021 we showed a case on this topic. Following up, this blog article with step-by-step instructions explains the provided solution.
The difference between Classic HDD and Hybrid SSHD is a NAND memory chip located on the PCB. This chip was added to improve the HDD initialization speed, and it stores a part of HDD FW. Also, it’s used as a cache for the user data.
At the same time, the NAND chip becomes a weak point of the drive due to the Flash memory specifics. It means if this chip is damaged, the drive won’t be able to initialize itself even if the SA part on the platters is OK.
How to recognize the problem?
The behaviour is similar: the drive isn’t spinning after power on but it comes to the DRD + DSC state and shows the correct passport information. Usually, after power on, you can see such an error message in the Terminal tab:
LED:0x000000BD FAddr:0x000059D8
So what to do?
First of all, it’s necessary to understand that in this case the patient’s PCB is damaged. We can’t unlock the drive using the native board!
Which parameters should I follow to choose a suitable donor?
All three parameters should be followed.
What is the solution?
1. Read the patient ROM via Terminal
2. Let’s unlock the Donor at first:
1) Work with the Flash ROM image file (Baud rate = 460800 always works)
2) Perform the unlocking patch
3) Open IAP (copy 1)
4) Find the sequence of bytes 12 34 56 78 and change the first byte to get 82 34 56 78
5) Apply the changes by writing ROM via Terminal 
6) Repower and unlock 
At this stage, the drive won’t come to the Ready state. The terminal log will show:
7) Open the Work with Flash ROM image tab, change the sequence of bytes to 12 34 56 78 back and write it.
8) Again repower the drive and unlock it. Now your donor drive is unlocked and can work via ATA!
9) It’s time to do a Backup 
NOTE: It’s important to exclude 3D, 3E modules and 20D,20E sys files from saving. Also please disable the Make loader option.
10) NAND reinitializing via the Terminal command /OI1
We have successfully unlocked the donor and prepared its PCB to work with the patient drive.
Show add. diag. msg in Terminal [NO] :
T>F"SerialDebugLevel",0
Offline defect sparing [NO] :
T>F"OFFLINE_SPARING_ENABLED",0
Deferred defect hiding [NO] :
T>F"DAR_ENABLED",0
Auto Reallocation (writing) [NO] :
T>F"WRITE_SPARING_ENABLED",0
Auto Reallocation (reading) [NO] :
T>F"READ_SPARING_ENABLED",0
Disable IDLE activities [YES] :
T>F"DISABLE_IDLE_ACTIVITY",1
Model : WDC WD20JDRW-11C7VS1
Serial : WD-WXC2A538FHCT
Firmware : 01.01A01
Capacity : 2.2 TB (4 294 901 760)
Family:................................. : FBLite2 2.5"
Techno mode key......................... : Ok
Debug Stop Code......................... : 1BC13 - TRANSLATION BLOCK INFO BAD HEAD
HDD Status sector....................... : Ok
RAM:
System controller (SoC)................. : 88i1053A0 (0x5460)
HDD Info reading........................ : Ok
Heads number............................ : 1
Cyl Count............................... : 384
ROM:
Read ROM................................ : Ok
ROM Data size........................... : 512 Kb
Flash ROM dir reading................... : Ok
Flash ROM dir reading (Ext)............. : Ok (Active)
Modules directory address............... : 0
SA regions address...................... : shifted
SA regions address (RAM)................ : by default
Module 02 access........................ : Granted
WWN..................................... : 50014EE215DFA138
Zone allocation table................... : Logical zone table read error HDDs RAM reading error Device Error Detected: "SCT INVALID FUNCTION CODE"
SA SPT.................................. : 500
SA Translator loading................... : Ok
SA defects assigned..................... : 4
ROM Modules:
ROM version............................. : 00.02B
Module 4F F/W version................... : 00000002
Overlay F/W version..................... : 00.03B
Servo F/W version....................... : 03.7W
Heads configuration..................... : by map
Heads number............................ : 4
C:\Program Files\ACE Lab\PC-3000\Bin\!Profiles\WDCMarvell\FBLite2\00-02B-FBLite2-V\Data\Modules\Composed
LBAHeadPrepare error!
Error LBAHeadPrepare - Access violation at address 00000000341A0DF1 in module 'PCWDCM~1.DLL'. Read of address 0000000000000000
start time 3/22/2025 10:43:20 PM
finish time 3/22/2025 10:43:20 PM
Allow UA writing
And exit for utilities
And power off and on and again open utilities
Then head map and again lock UA writing
Model : WDC WD10SDZW-11UMGS0
Serial : WD-WXP1E182ARS9
Firmware : 01.01A01
Capacity : 1 000 GB (1 953 459 632)
Model : WDC WD40EDAZ-11U78B0
Serial : WD-WX82DA169J7L
Firmware : 80.00A80
Capacity : 4 TB (7 814 037 168)
60 | 20C | 5.45 s | C0004012106CDFF | 51043307 | OVL_POWERUP_LOAD_DRM_FILES(SMART DRM LOAD DISABLED)
68 | 227 | 5.71 s | C000401213FFDFF | 51043746 | Load GPD-List (13A)(FM ERR NOT FOUND IN DIR)
76 | 21C | 11.88 s | C00042129BFFDFF | 514051A2 | OVL_POWERUP_LOAD_CLDFH_LOG_DATA(DISK ECU UNSAFE ERROR)
89 | 223 | 13.21 s | 1C288421AFBFFDFF | 51043D9C | End Process 190(GPD-List (13A) not found)
91 | 236 | 13.30 s | 1C288421AFBFFDFF | 51049447 | POWERUP_NV_EGRESS_INIT_COMPLETE(VSC error code: 9447 : NV EGRESS ERRORS RANGE)
Patient HDD iD:
Model Number: ST4000LM024-2AN17V
SN: WCK4KDYA
Patient HDD Failure Symptoms:
Busy, Undetected, Nohost, Wrong Data Area
COM Terminal Error Messages:
‘Boot 0x80M
MD45L1
0001
SpinUp
TCC:0015
Trans
Rst 0x80M
MD45L1
0001
[RSO is disabled]
(P) SATA Reset
No HOST FIS-ReadyStatusFlags 0002A1A1
ServoDiscSlip Time = 00000039’
Seagate HDD Firmware Repair and Data Recovery Steps
1, Select correct family ID: M11(A1) and Enter DFL Seagate HDD Firmware Repair and Data Recovery Software(no need to power on);
Ram Infotech Data Recovery successfully handled a Western Digital WDC WD60EDAZ-11U78B0 6TB hard drive that was affected by a serious read/write head problem.
The customer approached our data recovery team after the hard disk stopped accessing important files normally. During our initial diagnosis, our engineers identified that the drive had developed a head-related mechanical failure, which was preventing stable reading of the data stored on the platters.
Brand: Western Digital
Model: WDC WD60EDAZ-11U78B0
Capacity: 6TB
Problem: Read/Write Head Failure
Recovery Result: 88% Data Recovered Successfully
Service: Professional Hard Drive Data Recovery
The hard drive was not able to read data consistently because of a damaged or weak read/write head.
The read/write heads inside a hard disk are responsible for reading information stored on the magnetic platters. When the heads become damaged, weak, or unstable, the drive may show symptoms such as:
Continuing to power on a hard drive with a suspected head problem can increase the risk of platter damage and permanent data loss.
Our data recovery engineers first performed a detailed diagnostic assessment of the WDC WD60EDAZ-11U78B0 drive.
The diagnosis confirmed that the drive had a head-related mechanical issue.
The recovery process was carried out carefully using professional data recovery procedures.
The drive was stabilized before attempting intensive data extraction. Our engineers then worked on obtaining the maximum possible readable sectors while minimizing additional stress on the damaged hard disk.
Instead of repeatedly trying to open files directly from the failing drive, the data was recovered through controlled imaging and sector-level extraction procedures.
After completing the recovery process, approximately 88% of the customer’s data was successfully recovered.
The recoverable files were extracted and verified before being prepared for delivery to the customer.
88% Data Recovery Successfully Completed
Although some sectors of the hard disk were no longer readable because of the physical condition of the drive, our engineers were able to recover the majority of the important data.
A hard disk with a damaged read/write head is a serious physical data recovery case.
Opening the hard drive outside a controlled environment or repeatedly powering it on may cause further damage.
For head-related failures, professional data recovery may involve:
The recovery procedure depends on the exact condition of the hard drive.
If your Western Digital hard disk is making unusual sounds, becoming extremely slow, disconnecting frequently, or not detecting correctly, stop using the drive immediately.
Avoid:
These actions may reduce the possibility of successful recovery.
Ram Infotech Data Recovery provides professional data recovery services in Chennai for different types of Western Digital hard drives, including:
WD Elements, WD My Passport, WD Blue, WD Green, WD Black, WD Red, WD Purple and other Western Digital HDD models.
We handle data recovery cases involving:
If your WDC WD60EDAZ-11U78B0 or another Western Digital hard drive has stopped working, avoid further usage and get the drive professionally diagnosed.
Ram Infotech Data Recovery provides professional HDD, SSD, NVMe, USB drive, memory card and external hard drive data recovery services in Chennai.
Ram Infotech Data Recovery
Professional Data Recovery Service in Chennai
Since 2007
WDC WD60EDAZ-11U78B0 Head Problem Data Recovery – 88% Recovered
WDC WD60EDAZ-11U78B0 6TB Western Digital hard drive suffered a head problem. Ram Infotech Data Recovery successfully recovered 88% of the data in Chennai.
https://www.raminfotechdatarecovery.com/
https://blog.raminfotechdatarecovery.com/
https://www.raminfotechdatarecovery.com/case-study.html
WDC WD60EDAZ-11U78B0 data recovery, Western Digital 6TB data recovery, WD hard drive head problem, hard disk head failure recovery Chennai, Western Digital data recovery Chennai, HDD data recovery Chennai
Seagate ST3160215AS 160GB Firmware Issue – Data Recovery Case Study
Brand: Seagate
Model: ST3160215AS
Serial Number: 5RA3G5JV
Firmware: 4.AAB
Capacity: 160 GB
LBA: 312,581,808 Sectors
Issue: Firmware-related hard disk problem
Service: Professional Hard Disk Data Recovery
A Seagate ST3160215AS 160GB hard disk was received at Ram Infotech Data Recovery for professional diagnosis and data recovery.
The customer required important data from the drive, but the hard disk was experiencing a problem related to its internal firmware operation. Firmware faults can prevent a hard disk from initializing correctly or communicating normally with a computer.
Our data recovery engineers first performed a controlled diagnostic examination of the Seagate hard disk.
The drive details identified during diagnosis were:
The diagnostic process focused on checking the drive's firmware condition, internal response, sector accessibility, and overall read stability.
A hard disk contains internal firmware responsible for controlling many important functions, including:
When firmware becomes damaged, corrupted, or inaccessible, the hard disk may fail to work normally even when some of its mechanical components are still functional.
Common symptoms may include:
Firmware-related hard disk problems should be handled carefully.
Instead of repeatedly connecting the affected hard disk to different computers or attempting normal software recovery, the drive should first be properly diagnosed.
Our recovery process may involve:
When a hard disk is unstable, directly copying files through Windows may cause additional read problems.
Professional data recovery generally focuses on creating the safest possible clone or image of the affected media first.
This approach helps reduce unnecessary access to the original disk and allows further logical recovery work to be carried out from a controlled copy.
If your hard disk contains valuable data, avoid:
Incorrect firmware modification can make recovery significantly more difficult.
Ram Infotech Data Recovery provides professional data recovery services for Seagate hard disks and other storage devices.
We handle problems involving:
We support data recovery from:
Every failed hard disk should be diagnosed individually.
Two drives with the same ST3160215AS model number may still suffer from completely different problems. One drive may have firmware corruption, another may have bad sectors, while another may have head or PCB-related failure.
For this reason, professional diagnosis is important before attempting recovery.
If your Seagate ST3160215AS, Barracuda, or another Seagate hard disk is not detected, reading slowly, showing the wrong capacity, or contains inaccessible data, stop unnecessary usage and seek professional data recovery assistance.
For professional HDD, SSD, NVMe, external hard disk, USB drive, memory card, and RAID data recovery assistance in Chennai, contact Ram Infotech Data Recovery.
Main Website:
https://www.raminfotechdatarecovery.com/
Data Recovery Website:
https://www.raminfotechdatarecovery.in
Data Recovery Blog:
https://blog.raminfotechdatarecovery.com/
More Data Recovery Case Studies:
https://www.raminfotechdatarecovery.com/case-study.html
Ram Infotech Data Recovery
Professional Data Recovery Services in Chennai
HDD • SSD • NVMe • External HDD • USB • Memory Card • RAID
