# Elios 3 LED patterns

**⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅  Blinks green (Imminent takeoff)**

Drone is in arming delay state

 

**⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅  Blinks cyan (Firmware upgrade)**

Esc upgrading / Payload updating / obc update flags (herelink / lidar / vio)

 

**˗˗˗˗˗˗˗˗˗˗˗˗   Solid pink (USB Masstorage)**

USB powered enabled and USB Host is detected

 

**⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅  Blinks light blue (binding mode)**

Activated after holding button for 5-10s  then will stay in this mode for 10s

 

**⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅   Blinks yellow (Battery lever open)**

Battery lever not detected

 

**⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅   Blinks red (Battery critically low or error )**

If battery SoC < 10% or Battery Communication error

&#x20;

**--  --  -- --   Blinks light orange (Battery low)**

If battery state SoC < 20%

&#x20;

**⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅   Blinks light orange (Onboard transmission system overheating)**

CPU temperature above 90°C and not receiving remote controller commands

&#x20;

**--  --  -- --   Blinks lite blue (Transmission system not connecting)**

Aircraft does not receive remote controller signal or the latency is too big

&#x20;

**--  --  -- --   Blinks lite yellow (Arming sequence blocked)**

Arming sequence blocked, warning message should be displayed

&#x20;

**˗˗˗˗˗˗˗˗˗˗˗˗   Solid green (Drone OK)**

Drone Ok (default state - none of the above)


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