Hi, guys. I am living near salunke vihar road, wanawadi pune. I am facing issue with signal of evdo for past week. When my zte ac8700 datacard is in evdo mode or 1x mode it only shows X instead of even one signal point out of five. But when in evdo mode it shows green led light on card, and i dont remember it properly but i think it used to show only orange light when there wasnt a signal. Do u guys think its data card gone dead issue or bsnl tower issue? Also is there a phone number for bsnl that i can call for help? Also please provide names and purchase site links for data cards that support evdo and could also work with tplink 3420 router. Thanks in advance.