Help Do I need to do this update

[Android Question]

My question is Do I need to do this update?? I have galaxy S3 light. I have net 10 service, phone came from t mobile. I'm getting a t mobile update serVice notification on my phone. My phone has tmobile icons and stuff but i can't access of course since I have net 10 service. Thx G

 

[chanchan05]

What update exactly? Is there a notification on your phone about an update?