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请问怎么判断芯片被锁死,我这个芯片是淘宝买的,35块钱。然后第一次load program的时候,擦除flash的时候软件出现过未响应,然后过了一会儿就擦除不了了,烦请你帮我看看,这种情况会导致芯片坏吗?