Hi @Jetson-Nano,
Can you please clarify the following - in your original post, you mentioned that the third party ESC also had issues, however in the post above you said no issues. I am quoting your notes from above:
"
Scenario 3 – Third-Party ESC Evaluation
To further isolate the issue, we replaced the VOXL FPV ESC with a NeutronRC X-CLASS 4IN1 ESC V2 (3–8S, 70A) configured using the DShot protocol.
During testing, we observed the following:
ESC temperature increased rapidly, reaching approximately 80°C to 90°C within two minutes of flight.
One motor would subsequently stop during flight.
The aircraft would lose stability and crash.
"
I just wanted to clarify what actually happened and then we can investigate further. Than, you for providing the diagram, i think it looks OK.
I have never seen this behavior where the ESC reports incorrect voltage and these short spikes in temperature. This may point to a hardware issue on the ESC board, but i do not actually know where it might be or what would cause it. Have you visually inspected the FPV ESC that has this issue to see if any components appear damaged or anything looks unusual?
Alex