Hi,
I have a My Cloud Home 4tb with a White flashing light . Here's the steps I've tried so far to resolve the issue. Im wondering if i buy another my cloud home nas and Swap only the HDD into the donor enclosure could i access my and recover my files? Thanks for any help!

What you’ve tried (in order)

WD My Cloud Home 4TB (single-disk) stopped working normally

LED slow blinking white


Device shows offline in My Cloud Home app

Disk-level tests

Removed the HDD from the enclosure


Connected it to a PC via SATA + external power


Mounted partitions using Paragon (ext4)


Multiple small partitions mount, main data partition not readable


Files appear encrypted → confirms My Cloud Home encryption

Power / hardware checks

Verified original 12V power supply is correct


Unit powers on, disk spins, no clicking noises

Considered alternate PSU (not root cause)

Network diagnostics

Connected My Cloud Home to router and directly to PC

Router assigns IP: 192.168.0.18

Ping works consistently

ARP entry present

Web UI (http://192.168.0.18) → connection refused

SSH (root@192.168.0.18) → connection refused

WD discovery / app cannot bring it online

Reset attempts

Performed short pin reset (1–29 sec) = reboot only (confirmed safe via WD docs)

Waited 10+ minutes

No change: still IP reachable but no services

What this proves
✅ Disk is physically OK
✅ OS boots far enough to get an IP
❌ WD services (web, SMB, SSH) do not start
❌ Direct PC access impossible due to encryption

What the problem most likely is
Firmware / system service failure on the My Cloud Home enclosure, not a disk failure.

drive may be still malfunctioning, it needs precise diag. Cloning is a first step, but if the drive has issues, i don't recommend DIY, coz drive asks for a selective cloning, need to know what to clone first, some other measures may also be required.
you might want to check the smart attribs of your disk and post it here as a first step.

_________________
Adatmentés - Data recovery

It would be nice to translate the readable and unreadable LBA into PBA using this HDD. Sorry.

How do I go about this? Thanks

[quote="SWM"]It would be nice to translate the readable and unreadable LBA into PBA using this HDD. Sorry.[/quote
How would I be do this?. Sorry I'm knew to this

(04) WDC WD40EFAX-68JH4N0
----------------------------------------------------------------------------
Model : WDC WD40EFAX-68JH4N0
Firmware : 82.00A82
Serial Number : WD-WX32D40HPR7P
Disk Size : 4000.7 GB (8.4/137.4/4000.7/4000.7)
Buffer Size : Unknown
Queue Depth : 32
# of Sectors : 7814037168
Rotation Rate : 5400 RPM
Interface : UASP (Serial ATA)
Major Version : ACS-3
Minor Version : ACS-3 Revision 5
Transfer Mode : SATA/600 | SATA/600
Power On Hours : 29202 hours
Power On Count : 85 count
Temperature : 23 C (73 F)
Health Status : Bad
Features : S.M.A.R.T., NCQ, TRIM, GPL
APM Level : ----
AAM Level : ----
Drive Letter : X:

-- S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
01 __1 __1 _51 000000016167 Read Error Rate
03 206 203 _21 000000000A73 Spin-Up Time
04 _93 _93 __0 000000001DBE Start/Stop Count
05 200 200 140 000000000000 Reallocated Sectors Count
07 200 200 __0 000000000000 Seek Error Rate
09 _60 _60 __0 000000007212 Power-On Hours
0A 100 100 __0 000000000000 Spin Retry Count
0B 100 253 __0 000000000000 Recalibration Retries
0C 100 100 __0 000000000055 Power Cycle Count
C0 200 200 __0 00000000004A Power-off Retract Count
C1 196 196 __0 0000000038D7 Load/Unload Cycle Count
C2 124 _96 __0 000000000017 Temperature
C4 200 200 __0 000000000000 Reallocation Event Count
C5 200 200 __0 000000000005 Current Pending Sector Count
C6 100 253 __0 000000000000 Uncorrectable Sector Count
C7 200 _48 __0 0000000000A1 UltraDMA CRC Error Count
C8 100 253 __0 000000000000 Write Error Rate

-- IDENTIFY_DEVICE ---------------------------------------------------------
0 1 2 3 4 5 6 7 8 9
000: 427A 3FFF C837 0010 0000 0000 003F 0000 0000 0000
010: 2020 2020 2057 442D 5758 3332 4434 3048 5052 3750
020: 0000 0000 0000 3832 2E30 3041 3832 5744 4320 5744
030: 3430 4546 4158 2D36 384A 4834 4E30 2020 2020 2020
040: 2020 2020 2020 2020 2020 2020 2020 8010 4000 2F00
050: 4001 0000 0000 0006 3FFF 0010 003F FC10 00FB 0110
060: FFFF 0FFF 0000 0007 0003 0078 0078 0078 0078 4D28
070: 0000 0000 0000 0000 0000 001F 9F0E 0006 004C 0040
080: 07FE 006D 746B 7501 6123 7469 B401 6123 407F 8101
090: 8101 0000 FFFE 0000 0000 0000 0000 0000 0000 0000
100: BEB0 D1C0 0001 0000 0000 000A 6003 0000 5001 4EE2
110: BD42 5E65 0000 0000 0000 0000 0000 0000 0000 401C
120: 401C 0000 0000 0000 0000 0000 0000 0000 0021 0000
130: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
140: 0000 8001 0004 8160 0000 0000 0000 0000 0000 0000
150: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0001
160: 0000 0000 0000 0000 0000 0000 0000 0000 0002 0001
170: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
180: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
190: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
200: 0000 0000 0000 0000 0000 0000 3039 0000 0000 4000
210: 0000 0000 0000 0000 0000 0000 0000 1518 0000 0000
220: 0000 0000 107E 0000 0000 0000 0000 0000 0000 0000
230: BEB0 D1C0 0001 0000 0001 1000 0000 0000 0000 0000
240: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
250: 0000 0000 0000 0000 0000 1EA5

-- SMART_READ_DATA ---------------------------------------------------------
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
000: 10 00 01 2F 00 01 01 67 61 01 00 00 00 00 03 27
010: 00 CE CB 73 0A 00 00 00 00 00 04 32 00 5D 5D BE
020: 1D 00 00 00 00 00 05 33 00 C8 C8 00 00 00 00 00
030: 00 00 07 2E 00 C8 C8 00 00 00 00 00 00 00 09 32
040: 00 3C 3C 12 72 00 00 00 00 00 0A 32 00 64 64 00
050: 00 00 00 00 00 00 0B 32 00 64 FD 00 00 00 00 00
060: 00 00 0C 32 00 64 64 55 00 00 00 00 00 00 C0 32
070: 00 C8 C8 4A 00 00 00 00 00 00 C1 32 00 C4 C4 D7
080: 38 00 00 00 00 00 C2 22 00 7C 60 17 00 00 00 00
090: 00 00 C4 32 00 C8 C8 00 00 00 00 00 00 00 C5 32
0A0: 00 C8 C8 05 00 00 00 00 00 00 C6 30 00 64 FD 00
0B0: 00 00 00 00 00 00 C7 32 00 C8 30 A1 00 00 00 00
0C0: 00 00 C8 08 00 64 FD 00 00 00 00 00 00 00 00 00
0D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 00 00 14 73 01 7B
170: 03 00 01 00 02 58 03 00 00 00 00 00 00 00 00 00
180: 00 00 01 04 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 67

-- SMART_READ_THRESHOLD ----------------------------------------------------
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
000: 10 00 01 33 01 28 89 01 00 00 00 00 00 00 03 15
010: 00 00 00 00 00 00 00 00 00 00 04 00 00 00 00 00
020: 00 00 00 00 00 00 05 8C 00 00 00 00 00 00 00 00
030: 00 00 07 00 C8 C8 C8 C8 00 00 00 00 00 00 09 00
040: 00 00 00 00 00 00 00 00 00 00 0A 00 00 00 00 00
050: 00 00 00 00 00 00 0B 00 00 00 00 00 00 00 00 00
060: 00 00 0C 00 00 00 00 00 00 00 00 00 00 00 C0 00
070: 00 00 00 00 00 00 00 00 00 00 C1 00 00 00 00 00
080: 00 00 00 00 00 00 C2 00 00 00 00 00 00 00 00 00
090: 00 00 C4 00 00 00 00 00 00 00 00 00 00 00 C5 00
0A0: 00 00 00 00 00 00 00 00 00 00 C6 00 00 00 00 00
0B0: 00 00 00 00 00 00 C7 00 00 00 00 00 00 00 00 00
0C0: 00 00 C8 00 00 00 00 00 00 00 00 00 00 00 00 00
0D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 00 00 14 73 01 7B
170: 03 00 01 00 02 58 03 00 00 00 00 00 00 00 00 00
180: 00 00 01 04 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 81

Sorry, I wrote this in the wrong topic...

Ah no worries!

Your drive is very sick, plus it is an SMR model.

Your only hope for DIY recovery is https://www.reddit.com/r/datarecoverysoftware/wiki/hddsuperclone_guide/

_________________
A backup a day keeps DR away.

Thanks for the link! Ill give it a shot!

and if it wasn't enough, it is a MyCloud Home thingy, which usually has a proprietary FS on top of an ext4. So you need a great deal of luck to recover it on your own.

pepe

_________________
Adatmentés - Data recovery

Free WD MyCloud Data Recovery Tool:

https://github.com/springfielddatarecovery/mycloud-restsdk-recovery-script

_________________
A backup a day keeps DR away.

yep, that might work, but keep in mind there are multiple versions of the db and folder structure. I also wrote a python script for these back when nothing was available, and things were slightly different. So some luck is still required. Or coding skills.

_________________
Adatmentés - Data recovery