Sounds come upon power on, how to change tune or turn off?
I have a ZTE grand x 3 I got and I am having the same issue and I need a way to resolve it.
Silent Boot did not work for me on my ZTE Grand Max+ (Cricket Wireless) .... I HATE the startup noise phones make.
Did a quick search on Google Play store and found Silent Boot (link).
Try it and let us know if that's what you're looking for.