First of all sorry if I have a bad English.
I have some little experience recovering data. The most extreme recovery I made was a logic board replacement on a WD 3.5" desktop HDD.
I have an external WD Elements WDBABV5000ABK-00 500Gb that suddenly stopped working. It's my backups drive.
When plugged in it spins up, and makes what it sounds like a few heads movement. No ticking or strange noise. Led blinks twice and then stays on. After e few minutes it goes on standby mode.
Windows (I can work on Linux if needed) shows the drive as not initialized. In removable hardware list it shows as "Elements 1023" but without any volume or drive letter.
I can't read SMART parameters, smartmontools with -d sat,12:
C:\Program Files\smartmontools\bin>smartctl -d sat,12 -T permissive -a /dev/sdc
smartctl 6.5 2016-05-07 r4318 [x86_64-w64-mingw32-win7-sp1] (sf-6.5-1)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, ***.smartmontools.org
Read Device Identity failed: scsi error unknown error (unexpected sense key)
=== START OF INFORMATION SECTION ===
Device Model: [No Information Found]
Serial Number: [No Information Found]
Firmware Version: [No Information Found]
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: [No Information Found]
Local Time is: Mon Oct 01 19:52:38 2018 HA
SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 82-83 don't show if SMAR
SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 85-87 don't show if SMAR
T is enabled.
A mandatory SMART command failed: exiting. To continue, add one or more '-T perm
Utilities cant read from drive.
Testdisk shows read errors. I think in every sector it tries to read.
How can I start diagnosing the problem? Does it look like a logic failure?
I really need my data but recovery labs are not an option for me. It's not affordable for an end user in Argentina.
I would really appreciate any advice.