LG Optimus P690 - how to launch silently Is there a way (without rooting) to skip the startup sound on LG Optimus P690 if sound was not disabled before turning the phone off?
Lars Aronsson over at Androinica seems to think you can using an app called Silent Boot (though others disagree). Also suggested is Android Assistant which is supposed to automatically turning down the system volume before the phone power cycles. I haven't tried any of them personally - give 'em a try, YMMV.