And the get back to stock recovery and unroot .. Right ?
If so, how to do it ?
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Viper4androidFx is what you are looking for..... It is a replacement sound driver for rooted android devices, and allows the output to be boosted by a large margin, as well as having many other sound enhancement options. It works with the headphone jack, phone speaker, usb/mhl and most importantly it works excellently with Bluetooth audio.
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