This is my guess as to the test point (X) for the Reset* pin on a 2060-810003 PCB. The bridge is an Asmedia ASM225CM.

This is my guess as to the test point (X) for the Reset* pin on a 2060-800067 PCB. A point-to-point continuity test with a multimeter should confirm or reject my hypothesis.

I suspect that these are the corresponding points for a 2060-800041 PCB. This PCB sometimes has a JMS569 bridge (https://www.zeroalpha.com.au/images/RTF ... ert-2.webp).

A photo of this area on a 2060-800069 PCB confirms the connections to pin #38. Shorting point X to ground should keep the bridge in a reset state.

If this works, then you might want to ask MRT to add a switched, grounded pogo-pin for point X.

AIUI, your PCB is 2060-810035. Here are two photos: https://www.zeroalpha.com.au/images/RTFM/2060-810035.jpg https://recuperodatos.com/sites/default/files/webform/donantes/06326-PCB.jpg The first has a JMicron JMS579 bridge while the second has an Asmedia ASM1151W. These two bridges appear to be pin...

I'm hardly the person to be giving programming advice, but here is a simple FreeBASIC program that incorporates an ASM subroutine that does all the computational work.

https://web.archive.org/web/20230522152 ... rdrev3.bas

I think that a knowledge of ASM would be useful in data recovery. In my case, I learned Motorola 6800 assembler at university. For my second data recovery case in the 1980s, I wrote a tiny routine in Data General machine code to scan a Control Data HDD for directory sectors. These days some of my Fr...

Would you indulge my curiosity by uploading your LIM2 ROM and some other ROM? ISTR there are a couple of ROM segments at the end of the ROM which are modified during normal operation. Perhaps you could clear those segments?

I can see a few LIM1 and LIM2 versions of ST1000LM014 ...

Are you looking for the PCB or firmware? Are you sure your ROM is OK?

S.G. obviously has no practical knowledge of the inner workings of hard drives. I'm only an observer, but I at least understand that headstack replacement is the solution in 99% of cases where there is difficulty in reading the data (aside from media damage or SA corruption). Sadly, he is trying to ...