Homebrew Fatal error unable to mount sd card

[Mike_xy]

Hello,

I just got myself a switch from 2017. It’s on firmware 13.0.0
I have been trying all day to install atmosphere.
TegramRCM recognizes the switch in rcm mode, and says “payload loaded successfully”, but the switch screen remains black and after a while I get “Fatal error unable to mount SD card”.
I have tried 2 diffrent sd cards 16 and 32 gig.
Both formatted trough the switch menu, and the PC.
The official firmware recognizes both of them.

What am I doing wrong?

 

[Draxzelex]

Your SD card connector might be broken.