Yes I have updated it via OTA. I connected the phone with USB debugging enabled, started Root genius, and clicked on root. At 27% it asked for permission on my phone for installing Root Genius, I checked "I understand..." and clicked Install Anyway, this happened 4 times, and I gave it permission every time. The phone rebooted, but rooting failed.
BTW : I tried tethering it for internet via PDAnet+, but it failed saying that drivers are not installed properly. You can see in the screenshot that GIONEE S5.5 driver is not installed. Is that the problem? If so, how to solve it?
P.S. I also tried Kingo Root, but it does not even detect the phone!