Network displaying Red X Mark

[MSM_TZ]

HI,

I have Xperial ION LT28h Android and most f the time displaying RED Mark X then I restarted my phone and RED Mark X disappear

Please help on this issue 

Tha

thanks 

MSM

[Alexander1]

Try to change the network mode on your phone. Go to settings  > more > mobile network > network mode. Change between the different modes to see if anyone works better than the other. 

If you still experience problem you might have a faulty SIM card. I suggest that you try with a new SIM card in your phone. 

[MSM_TZ]

Thank you 

let me try and will get back to you

thanks

MSM