"Passed" sticker on modules prevents reflow

[butch]

I am reporting a problem that might bite you. A Waveshare NRF51822 module comes with a "Passed" sticker on the back (solder side) that makes the module stand off the mother PCB and prevents reflow soldering. So remove the sticker first. I reported this to Waveshare.

[bjorn-spockeli]

Thanks for making us aware of this issue. We'll have it in mind whenever we get questions regarding nRF51 Waveshare modules.

Best regards

Bjørn