Hi there,
today a problem occured with Ledger Nano S on the Brave browser and the Yoroi Wallet extension.
Basically the communication between Ledher Nano S and the yoroi wallet is somehow stuck and I cannot send transactions. I am waiting but nothing happens like in the video shown below.
Ledger Nano S has the Cardano app installed and opened during the transaction.
My Ledger device is just displaying “Waiting for commands…”
Any suggestions?
press both buttons at the same time
Thanks for your reply Tomek. But it is not working. Still same issue.
It seems to be a Ledger Nano S error or the error is Chromium related.
The Yoroi Log is showing no errors.
update:
I checked on 2 different computers.
Tomek´s advice with 2 buttons pressed at the same time worked on a windows PC. Transaction was succesful.
On a MAC it does still not work. Mac with newest Brave Browser.
I also checked an older version of Brave because of Chromium breaking the U2F USB protocol with a recent update, but it does not work either.
can you contact support in https://yoroi-wallet.com 
so we can help you
Thanks emurgo_nico, I did it.