I just purchased a second hand LEGO Mindstorms Home EV3. The brick turns on, allows firmware update, etc. However, after about 2 minutes the unit makes a noise, LED's turn red, and 3 icons appear.
- Triangle with exclamation point
- Gage with arrow pointing to the right (I assume overheat?)
- Manual with exclamation point
Question: does anyone know what this error message indicates?
There appears to be some battery corrosion as if it was stored and the batteries leaked. Additionally Ports 1 and 2 indicate "Error" or "Unknown" and sometimes they think a Sound DB sensor is plugged in even though nothing is plugged in.