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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
Glad you got it sorted! I'm kind of surprised the NFC configuration broke bluetooth, but maybe having the pins configured as NFC and putting power on them actually causes some stress on the chip.
As for soldering them... I tend to apply a bit of solder paste in a line with a syringe, use hot air, and then clean up with wick, but what you're doing with soldering iron sounds fine and I've done it in the past.
What I tended to do was actually apply solder to just one pan with a soldering iron, then position the module by hand with it melted. Then the module is held in place and I can continue soldering the other pads.