My Nokia 7210 Supernova's OS or software got corrupted 2 days ago. I took it to a repair shop and shopkeeper reinstalled the software. But since then I am not able to run any of the downloaded applications including the Browsers like Bolt or Opera mini. I can't even download the apps from the net. It says "Certificate not on SIM or phone". What should I do? Thanks in advance.
No i didnt take that to Nokia Care. There are no Nokia care or priority centers at dadri. And i had to get phone repaired urgently. I dont have any other phone. Please help me out. I am also not able to add my Gmail or yahoo mailboxes.