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Chip is locked! Not able to read IEEE address.

Other Parts Discussed in Thread: CC2541

用Flash Programmer下载hex文件到SensorTag出现错误,提示Chip is locked! Not able to read IEEE address. (Uncheck the "Retain IEEE address" option.)。

Read IEEE有时候能读出来,有时候会出现CC2541 - ID6927: Debug interface locked! (Erase chip to unlock it)错误。

我不知道是自己动了哪里出现的问题,昨天多还是好好的。是SensorTag的CC2541的Flash锁住了吗?该怎么解决啊?