Volumes levels / Jiayu S3-8.1-madOS2.1

[Metrino]

Volume levels are too low. In particular calls and notification volumes are unusable. The first step of the scale is inaudible, max level could be used as mid level. Media volume is a bit better, but could be raised. Corded speakers volume is OK.

Microphone seems to be OK (for calls and dictation)

[Dominik Baronelli]

Duplicate of #112.