: Press and hold the power button until the device vibrates. If prompted, enter your SIM PIN.
Sony Ericsson ST18i/ST18a. This User guide is published by Sony Ericsson Mobile Communications AB or its local affiliated company, : Press and hold the power button until the device vibrates
You can download the comprehensive manuals directly from official archives: : Press and hold the power button until the device vibrates
I have just bought my sony ericsson experia ray and i have ... - JustAnswer : Press and hold the power button until the device vibrates
: A detailed PDF Guide covering all features from setup to advanced settings.