Sandisk micro sd card not detected. How to diagnose the problem without knowledge about the sd card protocol?
Your card is likely dead beyond a protocol working.  But since you insist on arguing that point here's a long shot:

SD Cards can be run on a publicly available SPI protocol.  It's going to be slow but it does work.  Here's a starting point:

https://www.kingston.com/datasheets/SDCIT-specsheet-64gb_en.pdf

The protocol can be written on a microcontroller in a solid 8 hours.

Good luck.