Did this function move since Jelly Bean because I can't seem to fine it anymore.
To clear cache partition Press and hold the volume up then tap the power button, The screen should change to have more options pop up like reboot system now, wipe cache partition, and wipe data/factory reset, when you see these go down and select wipe cache partition then hit power to select.
5. Go down to reboot phone with the volume down keys and then tap power to select.
your phone is going to power off then start up again, Hopefully this helps, it doesnt remove personal data so your items on the device will be ok. Then to reset phone go to menu then setting go down to back up and reset and hit reset
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