my nexx app says my garage door is open when it's clearly closed, or vice versa. status is always wrong.

Diagnosis

The Nexx NXG-200 relies on a built-in accelerometer/tilt sensor to determine the state of your garage door. Unlike traditional systems that use magnetic reed switches, this device calculates the door's position based on the angle of the unit relative to the ground. When the app reports the wrong status, it means the sensor's "zero point" has shifted or the angle of the door when fully closed does not match the angle stored in the device's memory. This discrepancy typically occurs due to three factors: initial calibration was performed while the door was not fully seated, the unit has physically shifted on the door panel due to vibration, or the door is installed at a steep pitch that confuses the accelerometer's logic. You can confirm this by observing the LED indicator on the device; if the light indicates a "Closed" state while the door is physically open, the internal gyroscope is reading a tilt angle that falls within the "Closed" threshold defined during setup.

How to Fix It

To resolve the status mismatch, you must perform a hard recalibration of the tilt sensor to redefine the open and closed coordinates.

1. Open the Nexx app and select your NXG-200 device from the home screen.
2. Tap the Settings (gear icon) in the upper right-hand corner.
3. Navigate to Device Calibration or Sensor Setup.
4. Close your garage door completely. Ensure it is fully seated and the locking mechanism (if applicable) is engaged.
5. Tap "Set as Closed". The app will now record the current angle of the accelerometer as the baseline for the closed position.
6. Open the garage door fully. Wait for the door to come to a complete stop at the top of the track to avoid "bounce" interference.
7. Tap "Set as Open". This establishes the secondary coordinate.
8. Save the settings and exit the menu. Trigger the door once more to verify that the app status updates in real-time as the door moves.

If That Didn't Work

• Reposition the Mounting Bracket: If the unit is mounted on a curved or reinforced section of the door, the tilt angle may be inconsistent. Move the NXG-200 to a flat, central area of the door panel. Ensure the unit is perfectly vertical relative to the door surface; if it is tilted sideways, the accelerometer may misread the pitch.
• Check for Mechanical Obstructions: Ensure the door is not stopping 1-2 inches short of the floor due to debris in the tracks. Even a slight gap can prevent the sensor from reaching the "Closed" angle threshold, causing the app to report the door as "Open" or "Partial."
• Power Cycle and Cache Clear: Disconnect the power source from the NXG-200 for 30 seconds. While powered down, force-close the Nexx app and clear the app cache in your smartphone settings. This forces the app to pull a fresh state reading from the cloud server rather than relying on a cached (and incorrect) status.
• Firmware Update: Check the device settings for a firmware update. Early versions of the NXG-200 software had "drift" issues where the sensor would lose calibration over time; updating to the latest version implements a more stable tilt-threshold algorithm.

Heads Up

• Avoid Adhesive Failure: If using the adhesive strips, the heat of a garage in summer can cause the unit to sag. This slight tilt is enough to trigger a status error. Use the provided screws for a permanent, rigid mount.
• Vibration Warning: Avoid mounting the sensor directly next to the garage door motor or heavy springs, as excessive vibration during operation can cause the accelerometer to register "phantom" movements.
• Signal Interference: If the status takes several seconds to update after the door stops moving, check your WiFi signal strength (RSSI) in the app. Low signal can cause a delay in the "Closed" packet reaching the server.