How to Find the IMEI Number on Galaxy S4
IMEI number is a unique number which can be found on the device's box, by dialing a code, or in the About Device. Find IMEI Number on Galaxy S4 and ...
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Setting a customized vibration pattern for your contacts is a useful feature when you have to set the ringer off.
If you are a Samsung Galaxy S III owner, you just need to go to sounds > device vibration > create
And then follow the steps and crate the pattern
If you are using other android devices, try ViBe on Google Play Store