Network is not getting detected and showing Restricted symbol for some of the Networks

[Mahesh_emmadi]

Hi,

I Bought Sony Xperia T3 phone from Virgin mobile in Canada.After few days I have unlocked my phone and strated using with Mobilicy network which was working fine,suddently from past 2 days my phone was not able to recognize the signal  (Showing Invalid SIM Card message on my home screen).Today I went to Mobilicity store and I replaced my sim with new one,But still the issue is there.My phone is not able to detect the singal and it is showing the restricted symbol on Service Providers (Settings > More… > Mobile networks > Service providers).

Can you please help me in resolving the issue.

[Mahesh_emmadi]

@ uliwooly

As per your suggestions I have repaired  the phone using PC Companion and completed the latest software update.But still my problem is not fixed and it is not able to detect the signal and showing the cross mark on the signals.

[Jake-SonyXperia]

What happens if you use the SIM from Virgin again, does it work without issue?

[Mahesh_emmadi]

@ Jake

I tried now with Virgin SIM card,It is working fine.But while i am selecting the virgin network service provider from the list I noticed for mobiliciy signal there is a restriction or block mark on the sceen (as shown in the below screen).But Stil I am not able to use mobility sim card which is my actual problem

[Uliwooly]

@Mahesh_emmadi

How did you unlocked the phone?

[Mahesh_emmadi]

@ uliwooly

I bought the unlock code from the third party website which worked fine and I was able to access all the networks.But recently this issue started.

[Jake-SonyXperia]

Have you made sure that the device is 100% compatible with those network carriers, as this only seems to happen to those two networks, which leads me to believe that this is more of a compatibility thing, or maybe the network related issue.