Nope, I tried everything with the SIM. Even inserted another working SIM to check, doesn't work. Shows 0 signal in the mobile network status in About.
But now that isn't my concern. I want to flash back to Froyo so I can take it to the service center for warranty. And this is where I'm ending up with a lot of bad luck
I tried flashing all these firmwares:
Except the KPE, which is Gingerbread, none of the Froyo ones seem to work. They pass the Odin installation, however after the reboot, it gets stuck at the Galaxy Ace logo.
Seriously.. what's the problem I can't get it. I've tried all those Froyo FULL package ROMs that I saw people suggesting. Why does it get stuck at the boot? I can't return my phone to warranty with Gingerbread, as KC1 is the official in India yet.