Eachine 4in1 Minicube ESC + Pico Blx FC on an Arfun Pro 95 frame with those clearance-sale Racerstar 1103 6500KV motors from a couple months ago.
It was looking like this, playing around with prop sizes:
Was doing an "exercise" build, practicing my build process. Got things pretty tight IMHO, but when I finally did motor tests, two motors wouldn't spin. This was after getting all the important bits wired up and screwed on, with a couple parts of the install being permanent-minded, so tear down would be a little painful.
Got to motor testing, but two motors wouldn't spin. Check wiring, all looks good. No obvious damage to the ESC, though some of the soldering needed a lot more heat than I preferred.
Went to BLHeli configurator and was able to flash each of the ESCs to the very latest DSHOT, so this proved that I had comms through USB on the FC to the ESC via signal wires, right? Then I need to verify pos and neg to the ESCs, right?
How would I do that? Any other suggestions for debugging this?
Here's the ESC on first:
Here's the FC with most of the wiring done: