I have soldered a 1k resistor paralel to RN7.2. The loopback test works now perfectly.
The upload still doesn't work. I re-uploaded the bootloader, but it did not help, there is something more.
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I have soldered a 1k resistor paralel to RN7.2. The loopback test works now perfectly.
The upload still doesn't work. I re-uploaded the bootloader, but it did not help, there is something more.