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I used to live in Shenzhen for 5 years and know some guys who sell IC, including reballed SMC. I bought for about 600USD IC and so far all power IC and Backlight worked. For the SMC I havent tried them yet to be honest, they look good though. Do note, this is "just a guy" not a company and although I always got what I ordered I will not stand for him^^. Oh yah, if you can speak a word of Chinese and use WeChat it helps lol
I can read the number on it, and if its all I have, I just try. I don't have lot of smc failure luckily most I use are power IC and they work fine. Same question I would like to ask Louis who buys them from Ebay.