Can't access SDCard with micropython

[MrFarePlay]

Trying to access the SDCard. I'm using the following minimum code:

import umachine
import uos

sd = umachine.SDCard()
uos.mount(sd, '/sd')

I get:

Traceback (most recent call last):
  File "<stdin>", line 5, in <module>
OSError: 16

[MrFarePlay]

FYI, I tested it with the original firmware and give data on the sd card like how much space it has and space is left.

[Fede-26]

For me it gives the same errno 16 with the os and machine modules on both the lilygo and official versions.

[aw1at]

Does anyone have a MicroPython firmware.bin for T-Dongle S3 where everything is working? TFT-Display, LED, SDCARD, ussl?
with the correct PINs assigned,..

best regards