Help Clearing cache partition?

[eirianbryn]

Ok, i've had android phones for the past 6 or so years, this is the fist one that i can't figure out how to clear the cache partition. Not for apps... I did that.
Help?

 

[svim]

http://cellphoneforums.net/lg/t3820...;-reboot-safe-mode;-wipe-cache-partition.html