They replaced motherboard in mine too. Finally i am back with my Core.
So guys i don't think they get to know anything about what we have done when a phone is hard-bricked. The guy even used RIFF-JTAG jig cable to check what is wrong with the phone but he didn't find anything and said "Sir, problem is with hardware" and they replaced the motherboard and gave back to me in just 6 hours. So guys do anything you want with your core (only if it is in Warranty )
So guys i don't think they get to know anything about what we have done when a phone is hard-bricked. The guy even used RIFF-JTAG jig cable to check what is wrong with the phone but he didn't find anything and said "Sir, problem is with hardware" and they replaced the motherboard and gave back to me in just 6 hours. So guys do anything you want with your core (only if it is in Warranty )