How connect my smartphone as a remote?

by faratnight

I have a huawei p30pro and a mibox 3. I can control my android TV with the remote but each time I try to connect my smartphone, it connects only 1 Second. It's listed as connected but I can't control the mibox from my phone even with all the apps (android remote, mibox remote apps). I would like to use my phone since I want to copypaste a password each time I want to access a directory on my android TV.

I managed to access it before with my previous phone, a one plus 3t.

Why is my new phone incapable to access the box? Thanks

kenkiller

Remote control is now through the Google TV app.