Sir..,
I Buy a tata Docomo Sim since when it started in the HYD., but after 5 are over then it started problem, my cell(instrument (Nokia) stuck., and appears a message like this " updating sim'
or Stuck off or Swicth off or no signal.,
I can't get the right information in the right time through Custmer care.,
4 days back i meet DIVE IN show room near Nagarjuna Circle., They told you must...