RoB-D-W

I had the same issue with my FBV3. First I heated up all the soldered points on mainboard and the EXP-PCB with the solder iron, that brought the sensor Q1 back to life but not the LED D1. Then I performed the surgery and it was a success! In my case I bought a LED for 40 Euro-cents at a store in my City. I soldered it with an ordinary 25W solder iron but of course one needs to be carefull. I put two solder blobs on the PCB in the first step and then reheated those to "glue" the SMD to them. The resulting missalignment seems to be negligible. The color of the LED seems to be irrelevant as well. I bought a white PLCC2 with 3.2 V and 20 mA - it shines red anyway. It only turns white when I unplug the network cable and then fades. As the FBV is auto calibrating (sth I really don't get how it works) all LED parameters seem to be arbitrary, it just seems to be working with any plcc2 LED...