sn 1987 WD20EADS-00R6B0, spins down, wont ram edit

[drdoc]

sn 1987 WD20EADS-00R6B0
spions down after a minute and enters kernel mode with err abr
no model number detected
wont edit head map
there are no loaders.

What now ?
Thanks
==================================================================


Techno mode key
Techno mode key......................... : Ok

RAM:
HDD Info reading........................ : Ok
Heads number............................ : 1
Cyl Count............................... : 256

ROM:
ROM reading............................. : Ok
ROM Data size........................... : 192 Kb
ROM version............................. : 96.34Q
ROM generation.......................... : 96.34Q
Link table version...................... : 01.1R.
Consolidated ROM version................ : 00960034

ROM Modules:
Flash ROM dir reading................... : Ok
Flash ROM dir (ext) reading............. : Ok (Active)
Modules directory address............... : 245 265 (24)
Heads configuration..................... : by map
Heads number............................ : 8
Heads number in use..................... : 8
Switched off heads...................... : No
Heads map............................... : 0,1,2,3,4,5,6,7
ROM Firmware version.................... : 00960034

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< attemmpt to edit ram head map
Lib:
Offset (hex): 4000000
Size: 100000
Map Size: 8
==================================
RAM Range 4000000 (0186A0) reading error Device Error Detected: "VSCE KEY SECTOR MUST PRECEED DATA XFER REQUEST"
View ROM information
ROM Data size........................... : 192 Kb
Firmware version........................ : 00960034
Heads configuration..................... : by map
Heads number............................ : 8
Heads number in use..................... : 8
Switched off heads...................... : No
Heads map............................... : 0,1,2,3,4,5,6,7

ROM Modules
------------------------------
ID : Description
------------------------------
0A : Heads map
0B : Flash ROM dir
20B : Flash ROM dir (ext)
30 : SA Translator
47 : SA Adaptives
0D : Flash configuration
4F : Microprogram version

SA Regions
------------------------------
N : ABA : Size
------------------------------
0 : 0 : 247 488
1 : 329 984 :

[dmarques]

Hi,

Is that Dragfly4 family?

Have you tried to upload loader and then head map in ram?