phone won't turn on even when plugged in

awhile back the phone randomly glitched out when using it and i couldnt turn it back on, tried different button combinations and nothing worked, tried plugging it into the charger and nothing, waited a week or so to see if the battery would drain and try then but still nothing, no idea what to do now or if the phone is 100% dead, would like to atleast wipe the data off before sending it into a phone recycling place, any help here is welcomed, thanks in advanced!