I have this issue of Signal Loss too, and this method does not work , but i am sure that this is something software related , as its fixed when the phone is rebooted , there is nothing wrong with Hardware , I do not want to send out my phone to Xolo Service Center given there reputation with fixing issues in all forums that I went through , If only we could raise this with Intel , I am sure , they can reproduce and fix this ,
May be the Jellybean issue would fix this. If you find some other method , please let us know
I also downloaded the 12 MB Update recently, see some changes in the NFC settings , and I must say the GPS Lock has considerably improved , locks within seconds compared to minutes that it took before.
Even finds satellites in my Closed Room.
Eagerly Wating for JellyBean ,
Hope it fixes my Wifi Direct , NFC and Enables FM and SD Card :)