Ruuvi Sensor Is Not Starting
First run
Remove the plastic strip between the battery and the battery clip. Indicator LED light will blink on the Ruuvi sensor when the beacon is powered. Change the battery if the LED indicator continues to be off.
When changing the battery
Powering a Ruuvi Sensor is automatic: inserting the provided button cell (CR2477, CR2477T) battery, will power up the sensor.
The startup indicator lights are defined by the firmware version currently in use. Detailed information about changing the battery to your Ruuvi Sensor can be found here.
Ruuvi sensor is not visible or not updating to the app
Open the RuuviTag sensor and see if LED is blinking (very dim green light)
If LED is blinking approximately once per 2,5 seconds device is working normally and sending the data. You may also check that the battery voltage is normal.
Other apps or Bluetooth devices prevents to use Bluetooth
Some applications and Bluetooth devices can “steal” usage rights for the Bluetooth service or prevent using it. Disable other Bluetooth devices connected to the device. Known issues are usually related to Suunto Smart Watches.
Ruuvi Station iOS application requires pairing your Ruuvi sensor in the app using Bluetooth connection to enable Bluetooth alerts and to allow recording measurements when the app is running minimised in the background.
Check permissions
Ruuvi Station mobile apps require few permissions in order to collect data from your Ruuvi sensors.
Additionally, some applications (nRF Connect, IoTool, etc.) require permissions in order to see Ruuvi Sensor. Check granted permissions in OS settings.
Check power optimization features
Disable power optimization features in phone settings for Ruuvi Station.
Location is not enabled
Android doesn’t allow Bluetooth scanning if location is not enabled. Services running on Android 10 and higher cannot discover Bluetooth devices unless they have the ACCESS_BACKGROUND_LOCATION permission. More information can be found here https://developer.android.com/guide/topics/connectivity/bluetooth#Permissions
Bluetooth is disabled
Ruuvi Sensors use Bluetooth (BLE) to broadcast data. Check that your Bluetooth connection is enabled. Notice that the Ruuvi Sensors will not show up in your mobile device’s Bluetooth settings because Ruuvi Sensors are not connectable Bluetooth devices as they are only broadcasting.
Ruuvi Sensor firmware
Check that your Ruuvi sensor firmware is up to date. You can check your current firmware and update it to the latest version in the Ruuvi Station mobile app.
If your mobile device supports NFC you can read sensor related information on Add a new sensor page in Ruuvi Station by touching your Ruuvi sensor with your mobile device. Current sensor firmware version is also shown on the Sensor Settings page under Firmware. You can check if newer standard Ruuvi firmware versions are available for your Ruuvi sensor on this page.
Refer to https://ruuvi.com/software-update for more information regarding firmware.
Ruuvi Sensor signal is out of range
Bring Ruuvi Sensor closer to your mobile device. Make sure there are no structures between the Ruuvi sensor and your mobile device, which could obstruct the Bluetooth signal. Check our support article to improve Wireless Signal Strength when using Ruuvi products.
Resetting the Ruuvi Sensors
Typically, you don’t need to use these buttons in order to operate your Ruuvi sensor. Resetting your sensor clears the memory of the Ruuvi Sensor. In standard Ruuvi firmware version, this memory includes measurement history that is stored on your RuuviTag.
Two different configurations of buttons exist on the RuuviTag sensor main board, depending on the revision of your Ruuvi sensor:
Older RuuviTag model has two buttons named R (reset) and B (boot).
On the newer RuuviTag models, only the B (boot) button is available.
- To reset your Ruuvi Sensor: press button R.
- To set RuuviTag into bootloader mode (to update the firmware): keep the boot button B pressed while simultaneously briefly pressing the reset button R. If the sensor has only one button, keep it pressed for 10 seconds to enter the bootloader mode.