POWER METER: How should the LED on the power meter blink normally during charging?

Please check for the latest firmware version.

Gen 1 power meter spider（version 38）:

The LED stays on when plugged in and automatically goes off when fully charged.

Gen 2 power meter spider:

① Factory firmware version 40/41: After power-on, the four LEDs flash in sequence and go off when fully charged;

• XCADEY APP

  XCADEY APP: How do I update the firmware on my power meter using the APP?

  Byxcadey.admin October 23, 2025July 31, 2026

  XCADEY APP: How do I update the firmware on my power meter using the APP? 1.Connect the power meterOpen the XCADEY APP, ensure the power meter is connected successfully, and maintain a stable Bluetooth connection. 2.Enter the firmware upgrade pageScroll to the bottom of the Device Management page and tap “Firmware Update” to enter the

② Official firmware versions 109(The firmware needs to be updated through the app): On V109, all four LEDs breathe while charging and turn off when fully charged.

LED Indicators

	LED1	LED2	LED3	LED4	Description
Power-on & Battery Status
Power-on Self-Test	[LED1 → LED2 → LED3 → LED4]				The 4 LEDs flash sequentially from left to right for 1 second, then flash 3 times based on the spider’s current battery level.
Battery Level: 0%–25%					The leftmost LED (LED1) flashes 3 times simultaneously.
Battery Level: 25%–50%					The left two LEDs (LED1 & LED2) flash 3 times simultaneously.
Battery Level: 50%–75%					The left three LEDs (LED1, LED2 & LED3) flash 3 times simultaneously.
Battery Level: 75%–100%					All 4 LEDs flash 3 times simultaneously.
Operation & Function Status
Normal Operation					The rightmost LED (LED4) flashes once every 10 seconds.
Back-pedaling Mode (Bluetooth On)					The rightmost LED (LED4) flashes once every 0.5 seconds, indicating Bluetooth is enabled.
Calibration Mode					The second LED from the right (LED3) flashes rapidly.
DFU Firmware Update Mode					All 4 LEDs remain solid on.
Charging Status
Charging					Throughout the charging process, all 4 LEDs flash synchronously with a breathing effect.
Fully Charged					All LEDs turn off automatically once fully charged.

Power Meter Spider Gen2 – Firmware V109

Solid On

Off

Flashing

Rapid Flashing

Breathing Effect