On your Windows Phone 7 device if you use the Diagnosis App you can increase the volume by doing the following:
*#0002*28346#
Click Read,
System Gain: 7 change to 10
Class Gain: 7 change to 10
Device Gain: 7 change to 10
Press Start then Stop.
The volume will instantly be louder you can test by typing in one of the boxes. The only problem is this will be reset upon reboot.
Is there any way so that setting retain even after rebooting the windows phone. More tips and tricks to come.
No, there is no permanent way to do this hack, you need to make it on every phone boot.
What’s the diagnosis app?