labtech wrote:
Wondering if there could be a way of masking the main on board controller (presumably one that has failed) with one that is connected to it from a outer socket. ... Specifically, targeting SSDs, since many times there is no feasible solution due to encryption and much desoldering work.
Yes, that sounds like an easier approach for SSDs. Depending on the nature of the failure, you may be able to disable the controller via its reset pin. This usually places all the I/O pins in a high impedance state. Alternatively, you could remove or short (?) the crystal oscillator, unless of course it is embedded within the controller.