you did something wrong, EROM and GDFS are different. GDFS is unique to each phone by IMEI, while EROM isn't, if you EROM is damaged then you should have updated your EROM not rewrite the GDFS. Because you rewrote the GDFS and since it isn't the original GDFS of your phone you damaged more your phone. Best thing is to take it to another phone shop to fix your GDFS. I can't help you fix your GDFS, maybe someone else can, but as I said better take it to a service center. and if your phone will be fixed NEVER, i mean NEVER mess with GDFS again.