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CC2640: Debug interface is locked

Part Number: CC2640
Other Parts Discussed in Thread: CC2650STK

I used the hex file provided by others to burn, but the second burning error is as follows:

>Initiate access to target: COM46 using 2-pin cJTAG.

>Reading Primary MAC address finished.

>Start flash erase ...

>Erase finished successfully.

>Reading file: C:/Users/jun.yang/Desktop/simple_ peripheral_ cc2650stk_ all_ v1.6.0_ rev188.hex.

>Start flash programming ...

>Programming finished successfully.

>Reading Primary MAC address finished.

>Initiate access to target: COM46 using 2-pin cJTAG.

>Debug interface is locked. Aborting action. Only forced mass erase is possible.

>Debug interface is locked. Aborting action. Only forced mass erase is possible.

I did not solve the problem after erasing it, nor did I solve the problem after changing the chip