Hardware Problem with my microSD card port

[Schrax]

When I put my microSD in my new3ds xl, it ejects it automatically.
I must have the finger on it to make it work. Fix?

 

[cravas]

When I put my microSD in my new3ds xl, it ejects it automatically.
I must have the finger on it to make it work. Fix?

Open the back cover and swap the SD reader with a new one or try to fix yours.
You can buy parts on amazon or ebay.

Follow this guide till the part you have access to the reader on step 9 (you don't need to remove the board or disconnect any ribbons except the shoulder buttons):
https://pt.ifixit.com/Teardown/Nintendo+3DS+XL+2015+Teardown/36346