This older post from the pre-crimson days may or may not help:
Other than that, you do have VoLTE enabled in the BM818 Tool application, right?
Is the in-app volume muted, by any chance? (In whichever app you were using to play videos.)
This older post from the pre-crimson days may or may not help:
Other than that, you do have VoLTE enabled in the BM818 Tool application, right?
Is the in-app volume muted, by any chance? (In whichever app you were using to play videos.)