I just answered your ticket, so let me share the answer here also for others:
The firmware is needed to play the sound, it’s not loaded in flash by default. Please notice that it is necessary to request the firmware for NXP audio chip at NXP sales because it is necessary to sign NDA and ELA documents. The firmware is then provided in secured form. If you don’t have direct NXP sales contact, please contact our local distributors who can help you:
Technical support needs to be requested via this sales path too. These are specific products which are not supported via these tickets. Thanks for understanding.
Because we purchased the ADP Air SA8155P development board from Qualcomm for software development, there was no sound after burning the Android system.How can we get NXP audio firmware.
From QCOM web, flash NXP Audio Firmware use this cmd.
adb root adb remount adb push mercury_flash.bin /etc/firmware adb push mercury_sbl.bin /etc/firmware adb push mercuryflasher /vendor/bin // By default the mercuryflasher should be available in the software. If not, push it. adb shell # cd /vendor/bin ./mercuryflasher -f //flash ./mercuryflasher -r //read back the frame sync pattern, The expected pattern starts with 0xB6 0x49
