Hi, I see ios 7 is keeping a 4 gb file of my imessages and I have seen various methods to delete them off the phone including restore, or using ibackupbot etc. I cleared the imessage cache off my phone six months ago after searching for a solution for hours. I finally found a solution in a forum that did not require restoring, external app, or other extreme methods . I just can't remember the method. Can you help?