network problem

[keshav3110]

i have upgraded my phone to android 4.4.2 kitkat and now i have no network coverage,what shall i do????

[Uliwooly]

restart your phone and check again

[keshav3110]

i have restarted many times,but still it is not working, i itried my sim cart in another phone its working but not in mine,but a sim cart of a differant operator is working

[Uliwooly · Accepted solution]

Get a brand new micro SIM card and check again 

[alain17]

Had the same problem  with the KitKat version 18.3.C.0.37, but Sony made a new update, 18.3.C.0.40, and now everything works fine... Check what's you'r version of the KitKat... Hope that help'd...

[Malak11]

Xperia m2 network 0