Device: Photon 2
Problem: My Photon 2 powers up (blue LED flashing — Listening Mode), but it’s not detected by any computer over USB.
What I’ve tried:
- Multiple known good USB data cables
- Multiple computers (macOS, Raspberry Pi)
- USB ports confirmed working (mouse, keyboard, etc.)
- Tried both Listening Mode (flashing blue) and DFU Mode (solid yellow)
- No
/dev/ttyACM*
, no detection inlsusb
, and no logs indmesg
What I observe:
- Photon powers on, LEDs behave normally
- No USB activity or enumeration at all
- Other USB devices show up fine
Questions:
- Is this likely a hardware failure (USB data lines)?
- Is there a way to recover via UART?
- Should I request a replacement?