And I guess I have to change the speaker. Umi sayed It would be an option. I'd like to know if someone did it. Fix the audio voice problem with a new item. Thanks to all!!!
After the update to Android 7 (SP-Flash Tool), the volume when calling via Bluetooth is much too quiet. When playing music via Bluetooth, everything works. Is there a way to increase the Bluetooth volume?
When you are connected to Bluetooth device please press volume rocker on your phone and increase Bluetooth volume. Also engineering mode you can try increase.
The volume during the call I have already increased. The volume of the car is also at full volume. Where can I find the setting in Mtk mode? Thanks for your help.