Huffheinz
New member
I was very happy to receive my gremlin kit in the mail on Saturday. I started working on it tonight (Sunday) after dinner. I was able to flash the correct firmware on the FC after messing around with it a little. Once I figured out that I needed to use zadig to install the correct driver to the FC according to the FC manual on page 2, everything followed along with the video.
So I pre-tinned the pads on the FC and cut my ESC wires to length and tinned them up. I soldered them onto the board but when I checked them with the multimeter (22:00 minute mark in the build video), I found that I had a dead short somewhere. Everything looked good visually under the magnifying glass but there was no resistance between any positive and any negative anywhere on the board. So I got out the wire braid and de-soldered all the ESCs from the board and removed most of the solder, checking for continuity as I went to see if I had uncovered the culprit. Unfortunately, I took all the ESCs off and still had the dead short.
Here's what the board looks like after de-soldering it:
Since I can't see anything bridging any contacts, and I'm still getting full continuity between positive and negative, I can only assume that I have cooked this FC. Something must have melted internally to the board that is causing the dead short. I'm open to any troubleshooting suggestions, but it looks like I'll be ordering a new F3 Femto FC tomorrow (GetFPV.com has them for $23).
So I pre-tinned the pads on the FC and cut my ESC wires to length and tinned them up. I soldered them onto the board but when I checked them with the multimeter (22:00 minute mark in the build video), I found that I had a dead short somewhere. Everything looked good visually under the magnifying glass but there was no resistance between any positive and any negative anywhere on the board. So I got out the wire braid and de-soldered all the ESCs from the board and removed most of the solder, checking for continuity as I went to see if I had uncovered the culprit. Unfortunately, I took all the ESCs off and still had the dead short.
Here's what the board looks like after de-soldering it:
Since I can't see anything bridging any contacts, and I'm still getting full continuity between positive and negative, I can only assume that I have cooked this FC. Something must have melted internally to the board that is causing the dead short. I'm open to any troubleshooting suggestions, but it looks like I'll be ordering a new F3 Femto FC tomorrow (GetFPV.com has them for $23).