Sent phone to Sony repair and now it won't update
I have a ZL C6506 and it's battery went out. So I sent the phone to Sony for repair. They replaced the battery and flashed the phone with an older software 4.2.2 version 10.31.A.0.244.
Now the problem is that when I go to "Update center" and search for updates, it says the phone is up to date. I know that's not true since my phone had been running 4.3 before dying.
I can't understand why my phone won't update. Does anyone have any suggestions as to how I can force my phone to update? I tried through PC Companion but no dice. It says the phone is up to date too.