T100 full signal but call fail.... help.. ??
 

hi
i got T100 with full signal on both 900 and 1800 networks.
it shows operator logo np
but cant get a call.
while trying to call signal goes a bit down then full up , but still call failed
i have replaced PA same problem
any ideas ?

Try reset:
*2767*2878#

yea forgot to say i already reset phone with code and with twister :confused: