External Toshiba Canvio 2TB HDD failure - What next ?

[fzabkar]

The ROM is unique. Your data is unrecoverable without the original ROM.

Try reading the ROM in a programmer. If the CP section is intact, then there is still some hope.

[Basil1402]

So no one has anything to add?

[northwind]

What to add?

What fzabkar said -- 100% correct.