Default Galaxy mega 6.3 i9200 digitizer not working on gt-i9200?? Help

I have a customer wit a Galaxy mega 6.3 gt-i9200 Digitizer screen broke and I bought from eBay an galaxy mega 6.3 i9200 digitizer ... I took the digitizer out with my LCD separator replace the digitizer with i9200 and every time I turn on the phone it frizzes on the first lsamsung Logo every time I take of the digitizer it turns on Normal??any one Help me? Is the mega gt-i9200 different than regular i9200??