Some users might have noticed that even with full volume the audio output isnt loud enough. All devices have their Audio parameters set to a fixed factory value. Luckily for phones running Mediatek Chipset there is a way to increase the default volume of the device. We are going to do the following by Mediatek Engineering Mode.
Note : This will only work on MTK Devices
1. Open Dialer and type this number *#*#3646633#*#*. You will enter into MTK Engineering Mode.
2. Swipe left 2 times to enter into Hardware Testing Module and then tap on Audio Option.
3. Tap on Normal Mode and set the values accordingly.
Type > Sph2
Level > Select Highest Level
Value > 160 > Set
Type > Media
Level > Select Highest Level
Value > 255 > Set
Max Vol > 160 > Set
4. Come back and tap on Loudspeaker Mode and set the values accordingly.
Type > Ring
Level > Select Highest Level
Value > 255 > Set
Max Vol > 160 > Set
Type > Sph2
Level > Select Highest Level
Value > 160 > Set
Type > Media
Level > Select Highest Level
Value > 255 > Set
Max Vol > 160 > Set
5. After setting the above values, reboot your phone.
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