how do you increase the volume on these devices? someone said about a config file?
Try this Jimlad:
volume boost.
Enter this number *#*#197328640#*#*
This will open the service mode menu.
Select option [5] AUDIO
Select option [1] (VOICE CALL)
Select option [2] HEADSET
Select option [1] Volume
Select option [1] SRC Speech RX Volume
Select option [5] 5_lvl : 87
Press the menu button (left side)
Choose Key Input
Enter a value between 0 and 100, with 100 the loudest setting.
Press ok
Then press the menu button and select back this will save (don't use the right side back key you normally use to navigate the phone or you will quit out of the settings).
Keep selecting the menu and back until you exit the service mode menu.
You will also note you can change volume settings for other things like Bluetooth, handsets, video call etc.
I would never buy something like that it would have to be a universal sound device that way it can be ported from device to device. Or you could be stuck with a device that wont fit your next upgrade
