Is there a way I can solder the external microusb module to pins and get it working?
It may improve the advice you get if you were to post a photo of the damaged board. When the micro USB connector came off, did it rip off any tracks on the board as well?
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I've added the image. Thanks for the reply.
There are solder pads on the bottom of the PCB for each of the USB connector pins.
So it should be possible to get one of those small USB breakout PCBs that provides a set of 0.1" pins for the USB connections and attach that with short wires.
Here's a portion of the board layout of the MKR WAN 1310 from the Arduino website:
I've hidden the inner tracks etc. You should be able to see where the USB pads were and the tracks to/from them.
As suggested, get one of the USB breakouts and solder wires between that and your board. A easily accessible point to solder looks like the component labelled D1 just behind the USB connector for D+, D-, GND and USB 5V. The USB OTG signal could go to Q3 just above D1.
You would need some thin wire and a way of stopping the wires from breaking off due to cable movement.
EDIT: Another thought, the mechanical mounting solder pads look ok in your picture. You may be able to fit another USB connector in there of the same type. Just bend up the signal pins and solder thin wires to them and route to suitable places on the pcb.
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