Where can I get my Samsung Galaxy Tab 10.1 fixed?

My friend sold me his Galaxy Tab 10.1 (with the Android robot back plate Google IO conference) but it has not been able to boot up. Can anyone recommend a place in the city that can fix it? Or install a fresh stock ROM on it? I live in Sydney, maybe somewhere in Chinatown might know?

*edit: That is not Samsung. They will probably charge me at least $100. If it's only a stock ROM insert….surely someone can do it on the cheap somewhere.