Nothing of these worked for my Lenovo Yoga Pro 2 and I cannot stand it any longer. This si extremely frustrating and I can't see why Lenovo wouldn't react. Everybody is affected and they do not care. I have tried all the possible solutions suggested here and everywhere. No joy. I'm terribly dissapointed by lenovo and their attitude.
Own a yoga pro 2 for almost 2 years. Don’t waste your money. Lenovo support is terrible. My unit has been dropping the internet constantly, (use AirPort Extreme). A lot of complaints were posted on this problem. Lenovo was well aware that the internet card were defective, but offered no solution, repair, fix, or replacement for this unit. Could have bought 2 iPads for the price of this piece of junk. My opinion