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Thank you for sorting out my pro mini.

The first one I opened worked fine . Second 0ne come up with this error message . Binary sketch size: 1,084 bytes (of a 30,720 byte maximum) avrdude: stk500_getsync(): not in sync: resp=0x00 . I was loading blink sketch the programmer is USB Serial Port Download Adapter From you at the same time or ...

My son bought me 2 mini pros from you one is ok but other flashers faster on powering up and will not program . Can you give me any advice