help on notification icons, emergency call

[Vijayalakshmi Raghavan]

Hello Friends,
I recently was travelling to US, and back to India. My phone ( Google Nexus 4 from LG) currently shows emergency call only, though my mobile network provider says my account is active, asked me to re-insert MicroSIM card with no difference in the end. They further told me that my phone is locked , asked me to insert my 4 digit pin , but I have not put any pin.Tried 2-3 times the possible pin which I could have used just in case. Now , the notification bar does not swipe down , and I see the following icons on the left side , other than the selected task killer icon
I need immediate help on the following icons :

 

[frenziedfemale]

Try turning off phone and taking the Sim out. With the Sim removed turn phone on go to settings..more..APN settings tap the 3 dots and reset to default. Turn phone off and put Sim back in.

 

[frenziedfemale]

That fist icon looks like hangouts by the way..if you use it for SMS it is trying to connect. The second just yells you that you have no service

 

[HawaiianLaker]

Hello Friends,
I recently was travelling to US, and back to India. My phone ( Google Nexus 4 from LG) currently shows emergency call only, though my mobile network provider says my account is active, asked me to re-insert MicroSIM card with no difference in the end. They further told me that my phone is locked , asked me to insert my 4 digit pin , but I have not put any pin.Tried 2-3 times the possible pin which I could have used just in case. Now , the notification bar does not swipe down , and I see the following icons on the left side , other than the selected task killer icon
I need immediate help on the following icons :
View attachment 102164
View attachment 102165

where did you put in this "pin"?