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5 years ago. This question has been closed. Reason: Off Topic
Firmware not working for arduino
I update the firmware with RBL_nRF51822_MK20.bin in https://github.com/RedBearLab/nRF51822-Arduino/tree/master/mk20. Then I won't be able to upload program onto RBL nRF51822 board anymore. The arduino IDE I use is 1.6.5.