Thx for the advice, but unfortunately didn’t help. I set register 0x06 to value b00011010 instead of b00011110. Also, I’m using I2C communication, don’t know if this matters… Next to changing the charge pump value, I also completely rewired, resoldered all parts to no purpose :–( Any other ideas? Could it be the antenna? I now soldered about 80cm of stranded hookup wire onto the breakout board.
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