I'm wondering about data recovery on SSDs now. In theory the data would still be present on the drive even if not detected. The Phison s11 has been known to fail and rename the drive, this was due to the older firmware. The effected drives can be REFLASHED which includes FORMATTING and they will work again. The latter firmware seems to fail safe into a read only mode.
I'm wondering if there's a way to put the controller into an Engineer mode or Recovery mode so that the entire drive can be imaged. It's not perfect but some advanced forensics tools should be able to recover and reconstruct files from this. I haven't found anything regarding recovery of data on the drives apart from sending them in for data recovery.
I took apart one of my S11 drives and found a 2 pin header and several pads on the bottom. Bed of Nails testing or recovery. I'll keep looking into the hardware side as well as the code.
A 2 Pin connector and 18 pads. Would that mean a standard SWD 2 pin on ARM v 5 and up or the 20 pin connector used by ARM? Would a manufacturer make the flash only writeable through the ARM based MCU that it would be read through? Let's see how complex this MCU can be for 14x14.
It has to handle read and writes to flash and interface to SATA III. I'm fairly confident that it is ARM based, 32bit and efficient or specialized. Single or Dual core, ARMv7 or related version? Stay tuned.