My PS3 shut off in mid game and the red light was flashing. It turned back on and checked for any corrupt files. This has been the 3rd time in 6 months with this I am worried it will become a big issue. Should i just get a new one or is it my power cable which my dog chewed on over a year ago, it isn't bad but the part that connects to ps3 is missing a bit of rubber. And could i sneak trade it in somewhere to get money for the new superslim version?