Root [Duos II] Weird issue in galaxy s duos 2

[revathysal]

I bought s dous 2 4 months ago and it's running android 4.2 version.
I keep on getting alert like " UNBLE TO DETECT YOUR SIM CARD, RESTART YOUR MOBILE TO DETECT YOUR SIM CARD" while on call.when pressing ok it gets restarted...really it's a annoying problem...I have 2 SIM card loaded one is vodafone another one is airtel. This issue happens only during vodafone call.this issue happens daily...

I even transfered the SIM cards , but still it's happening..when called the vodafone customer care, they no problem in SIM card.

Really I am worried and helpless..

Looking forward for all your help & suggestion

 

[revathysal]

I have updated the version to 4.2.2 but the issue still exists.

Primary use of the phone is broken.pls help