I have a Flipsky 6.6 dual mini vesc. One of the outgoing cable going to a motor cane off the pcb. It doesn’ t look like a regular solder joint. The bottom of the solder that came off has a papery texture.
Any recommendations on how to reconnect it?
When you send a picture we will be able to tell better. Best case Flipsky gave you a cold solder. Worst case you tore up the pcb trace and the papery texture is actually the Fiber board of the pcb. In that worst case scenario you may have permanently ruined the chip as there is no longer a place to solder to.
There is hope though in that worst case. You could try soldering to the very bottom of the phase shunt for connection. This has the downside of potentially screwing up detection, reliability and accurate current measurement.
I have in the past torn off traces on my fried Flipsky 6.6 mini, I also desoldered shunts to make repairs on my second one before realizing buying a higher quality one is the best option.
Sounds like you may have lifted up the solder pad for the phase wire, if theres any remnants of copper left there you can attempt repair, but please understand looking for a new VESC is a very probable outcome.
Thanks, guys. One side still works! Not going to bother with a picture as I epoxied it and the others for structural reinforcement. Looks like I need a new one. I kind of wish Flipsky would either use cases on all their vescs or warn people.
The phase wire connection on the far left is the one that was detached. I broke a motor and was moving the wires out of the way and while I was using just one motor. This stressed that joint too many times apparently.