Surface pro 3 SSD corrupted and does not reinstal Win10. How to load windows from external SD slot?

The surface SSD is corrupted and a could not reestablish partitions, it seems that it is gone.

A- Is there a specific tool to force partitions?

B- Is it posible to use the external SD slot instead of the SSD?

C- or the only way is to open up tha surface and replace de SSD?