VOLUMIO DON'T WORK

hello to all! I subscribed in this blog 10 minutes ago and I have discovered a big problem!
my timeline…
I have installed volumio on raspberry
I have downloaded VOLUMIO APP on my Huawei
I have connected raspberry + audioquest dragonfly red + hd samsung at electrical socket

the volumio app don’t work…it remain in “searching” all the time…
in right low side are a little gear for “settings”, I tried to instert DEVICE IP ADDRESS of raspberry (I found it on list on my smartphone) but the app is constantly in “searching”

Now I tried to connect a monitor on my raspberry
WOW volumio get started…
volumio ask to me “volumio login”
BUT I CAN’T WRITE MY NICKNAME BECAUSE MY KEYBOARD DON’T WRITE THE UNDERSCORE CHARACTER!!! (THIS _)
if i press the “underscore” character appear “question mark”

Could someone help me???

Don’t need keyboard and screen. If you have the IP try to connect from your web browser by entering the IP in the URL bar.

Please have a read through the documentation, especially the quick start guide in my signature below.