Hello, unfortunately my first post is going to be one where I am requesting help. I purchased a used surface pro 3 about 2 months ago, and up until today it had been working great. Well after I installed the update last night my tablet would never come out of sleep mode. I was able to get it to boot once earlier by doing the 2 button reset procedure, but now that's not working. Tablet recognizes the charger, however the charging LED turns off when I push the power button. Any help is greatly appreciated.