I try to reproduce the steps shown on

https://m5stack.readthedocs.io/en/master/get-started/m5stack_core_get_started_MicroPython.html

After burning UIFlow-1.2.3 and restarting the M5Stack for a short time a black screen with three buttons "Upload, AppList, Setup". Then I see a welcome screen wich I can not leave.

How can I leave the welcome screen? Thanks, Regards
Mario