in this blog post we will walk you through the process to Activate HD Audio and AAC codecs on Lenovo Global ROM, the method work on all Lenovo devices running global RAW Firmware.
Steps:
- make a copy of build.prop
- edit and add following lines
# Bluetooth settings audio.effect.a2dp.enable=1 vendor.audio.effect.a2dp.enable=1 qcom.hw.aac.encoder= true qcom.hw.aac.decoder=true vendor.audio.hw.aac.encoder=true vendor.audio.hw.aac.decoder=true vendor.media.audiohal.btwbs=true ro.vendor.bluetooth.csip_qti=true persist.service.btui.use_aptx=1 persist.bt.a2dp.aptx_disable=false persist.bt.a2dp.aptx_hd_disable=false persist.bt.a2dp.aac_disable=false persist.bt.sbc_hd_enabled=1 persist.vendor.btstack.enable.lpa=false persist.vendor.bt.a2dp.aac_whitelist=false persist.vendor.bt.aac_frm_ctl.enabled=true persist.vendor.bt.aac_vbr_frm_ctl.enabled=true persist.vendor.btstack.enable.twsplus=true persist.vendor.btstack.enable.twsplussho=true persist.vendor.qcom.bluetooth.scram.enabled=false persist.vendor.qcom.bluetooth.aac_frm_ctl.enabled=true persist.vendor.qcom.bluetooth.aac_vbr_ctl.enabled=true persist.vendor.qcom.bluetooth.twsp_state.enabled=false persist.vendor.qcom.bluetooth.enable.swb=true persist.vendor.qcom.bluetooth.enable.swbpm=true persist.vendor.qcom.bluetooth.aidl_hal=true persist.bluetooth.sbc_hd_higher_bitrate=1 persist.sys.fflag.override.settings_bluetooth_hearing_aid=true # end Bluetooth settings
save and reboot