I put a skin on it my l7I and need a master reset code

The said happen to me with bad skin but as i put in the usb into and plug it the phone,the phone just shut off and turn on a every second

I put a bad skin and that happand to me, but what i do to fix that is use "Skiman" a.k.a "Skin Manager"..if you don't have it, then download the newest version..or maybe that's what you used to put the skin on your phone...Anyway, just open "skiman" and then plug your phone in, but make sure that skiman is open before pluging in your phone..I don't know why but it seems to work better that way..Then after it loads the skins on your phone, pick one that is an original skin that came with the phone from the list or use a skin that never made the screen go blank(Tip: The skin that is currently set on the phone should have a tick infront it's name) ..Then after clicking it, just click "More" in Skiman and then click "Set as active"..once you have done that just click more again and click "Restart phone"..and then your done. :D..Oh and if you still see the bad "Bad Skin" showing up when your in skins when useing the phone but skiman won't read it when on the computer, just download the same skin and install it back onto the phone..most likely the phone itself will show the skins name but skiman wont if it's currupted..so reinstall the bad skin and then delete it right after or whenever you have time and it should remove all the bad skins files from your phone..this would be a smart move cause if you don't do this, then someone might play around with your phone and select the "Bad skin" again and then you'll have to start from scratch.