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Power consumption of ble_app_beacon

Hi, I made a beacon board only have button and leds. The version of chip is nRF51822-QFAA G0. I used the precompiled hex file in the nRF518222 Beacon v1.1.0. After I download the nrf51822_beacon_app.hex by DFU in nRF Toolbox, the beacon worked fine. The idle current is about 4uA. The problem is if once I disconnect the VCC and reconnect the VCC again, the current turns to about 1mA and never turns down. I have already disconnected the DIO and CLK pin from the debugger. I have changed many boards, it is always same. Pins of leds and button are different form PCA20006, however if I recompile the source code and change the configuration of leds and button pins, the problem still exists. Does anyone know what is the problem and what can I do? Thanks for any help.

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