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Troubleshooting & Support
Select your device to find quick answers, charging guidance, indicator references, and safety information.
Knee Massager Smart
Device Fails to Power On
- Battery fully discharged: Charge the device with a USB-A to USB-C cable, then long-press the power button to turn it on.
- Power button pressed too briefly: Long-press the power button for 3–5 seconds; a short press cannot power on the device.
Device Fails to Charge
- Damaged or faulty charging cable: Replace it with a fully functional charging cable.
- Wrong charging cable used: Only use a USB-A to USB-C cable. USB-C to USB-C cables are incompatible and cannot charge this device.
- Loose cable connection: Plug the cable firmly into both the device and power adapter. The blue indicator will breathe and flash when charging normally.
Device Stops Working Mid-Session
- Low battery triggered auto-shutdown: If the power indicator flashes, the battery is low. Fully charge the device before reuse.
- 10-minute session timer completed: The device shuts down automatically after 10 minutes of use. Long-press the power button to restart.
Red Light Indicator Keeps Flashing or Will Not Stay On
- The red light only works with direct bare-skin contact. It will turn off under thick clothing or without skin contact. Adjust the device so it fits closely against bare skin.
- Short-press the power button to activate the red light. The indicator will stay solid when functioning normally.
Power Indicator Status Reference
- Fast flashing blue: Low battery—charge immediately.
- Slow breathing blue: Charging in progress.
- Steady solid light: Fully charged or running normally.
Battery Care
- Fully charge the device before first use.
- During long periods of inactivity, charge it at least once per month to preserve battery life.
Pro+ Knee Massager
Device Fails to Power On
- Battery fully discharged: Charge the device with a USB-A to USB-C cable, then long-press the power button to turn it on.
- Power button pressed too briefly: Long-press the power button for 3–5 seconds; a short press will not power on the device.
Device Fails to Charge
- Damaged or faulty charging cable: Replace it with a fully functional charging cable.
- Wrong cable type used: Use a USB-A to USB-C cable only. USB-C to USB-C cables will not charge this device.
- Loose cable connection: Ensure the cable is firmly plugged into both the device and power source.
Device Stops Working Mid-Session
- Low battery triggered auto-shutdown: If the indicator light is flashing, the battery is low. Charge the device before resuming use.
- 10-minute session timer completed: The device automatically shuts off after each 10-minute session. Long-press the power button to restart and continue.
Red Light Cannot Be Turned On
- Incorrect operation: Pressing the red light indicator itself does not activate the function. With the device powered on, short-press the main power button to turn on the red light.
- Do not press the red light indicator directly.
Power Indicator Status Reference
- Flashing blue: Low battery—charge immediately.
- Solid steady blue: Device has power or is fully charged.
Battery Care
- Fully charge the device before first use.
- During long periods of inactivity, charge it at least once per month to preserve battery life.
TENS Neck Massager
Device Fails to Charge
- Incompatible charging cable used: Use a USB-A to USB-C charging cable only. USB-C to USB-C cables cannot charge this device.
- Damaged or faulty charging cable: Replace it with a fully functional USB-A to USB-C cable.
- Loose cable connection: Confirm the cable is firmly plugged into both the device and power adapter or wall outlet. When connected correctly, the indicator will flash green in a breathing pattern.
Device Beeps When Adjusting Intensity
- The electrode pads are not fully and firmly attached to the skin. Before adjusting intensity, make sure the pads are pressed closely and evenly against your neck.
Discomfort or Tingling Sensation During Use
- Insufficient skin lubrication: Apply moisturizer or conductive gel to your neck before use for a smoother experience.
- Intensity level set too high: Reduce the intensity gradually to a comfortable setting.
- Normal TENS response: Mild electrical tingling is a normal feature of TENS (Transcutaneous Electrical Nerve Stimulation) technology.
Device Fails to Power On
- Power button pressed too briefly: Press and hold the power button for 3–5 seconds; a short press will not turn on the device.
- Battery fully discharged: If the device still cannot power on, check whether the blue indicator is flashing. Fully charge it with a USB-A to USB-C cable, then try again.
Power Indicator Status Reference
- Flashing blue: Low battery—charge immediately.
- Solid steady blue: Device is in use or has sufficient power.
- Flashing green: Charging in progress.
- Solid steady green: Fully charged.
Battery Care
- Fully charge the device before first use.
- During long periods of inactivity, charge it at least once per month to preserve battery life.
Safety Reminder
- Pacemakers and implanted devices: Do not use this device if you have a pacemaker or other implanted medical device.
- Pregnancy and medical conditions: If you are pregnant, have a medical condition, or are under medical supervision, consult your healthcare professional before use.
RED+ Knee Massager
Red Light Is Off and Device Is Not Heating
- The red light and heating function is set to the lowest level, L0 (off mode). Adjust the red light intensity from L0 to L1–L5 to activate heating.
Device Fails to Charge
- Damaged or faulty charging cable: Replace it with a fully functional USB-A to USB-C charging cable.
- Incompatible cable type used: USB-C to USB-C cables are not supported for this device.
- Loose cable connection: Confirm the cable is firmly plugged into both the device and power adapter or wall outlet.
Device Stops Working Mid-Session
- Low battery triggered auto-shutdown: If the power indicator is flashing, fully charge the device before resuming use.
- Timed session completed: The device shuts down after the selected 10-, 20-, or 30-minute session. Press and hold the power button to restart.
Device Fails to Power On
- Power button pressed too briefly: Press and hold the power button for 3–5 seconds; a short press will not turn on the device.
- Battery fully discharged: If the device still cannot power on, fully charge it with a compatible cable first.
Power Indicator Status Reference
- Flashing light: Low battery—charge immediately.
- Solid steady light: Device has power, is fully charged, or is in use.
Battery Care
- Fully charge the device before first use.
- During long periods of inactivity, charge it at least once per month to preserve battery life.