Online guide

Before following this troubleshooting guide, please make sure you have properly set up your Bluetooth using the iOS Auto Start Guide for Bluetooth and that you have read the general troubleshooting steps for iOS.

Bluetooth Troubleshooting First Steps - iOS

  1. Open iOS System Settings > Bluetooth and make sure Bluetooth is ON.

  2. Open iOS System Settings > Privacy > Location Services and make sure it is ON. Then select mLog and make sure it is set to "Always."

  3. If you’ve rebooted your phone, it could take up to 15 minutes before mLog starts detecting Bluetooth devices reliably. If it still isn’t working after 15 minutes, open the mLog app once, and press the Home button. The app will stay in the background.

More Troubleshooting

If you have tried all of the troubleshooting steps and still experience issues with Bluetooth, please see the below problems and solutions listed:

  • If you spend long periods in your vehicle while your vehicle is idling, mLog could time out to conserve battery. If mLog times out, this could potentially cause you to miss recording trips and mileage. In this case, we recommend adjusting your mLog timeout settings: Go to Menu > Auto Start On > Timeout and set the timeout to 10 or 15 minutes (the amount of time that you would remain idle in your vehicle).

  • If you have an iPhone 7 or above and your trips stop recording when you plug your phone into your car’s charger, this is because of the Bluetooth MAC address changing when you plug in your phone. To fix this issue, plug your phone into your vehicle and follow the Bluetooth connection steps listed here to set up a Bluetooth-mLog connection with your car’s charging port.

  • If you are still experiencing issues, mLog support will have to diagnosis the problem through your debug logs. Follow the steps listed below to generate debug logs.

Generating Debug Logs

To generate debug logs, follow these steps:


  1. From the Trips page, go to Menu > Adjust Vehicle Odometer > Select vehicle (any vehicle if you have multiple) > Enter 999999 (six 9's) > OK. This will turn ON your debug logs. Entering this number will not affect your current odometer reading or mileage.

  2. Continue using mLog. If you experience the same issue, turn off the debug logs by going to Menu > Adjust Vehicle Odometer > Select vehicle (any vehicle if you have multiple) > Enter 000000 (six 0's) > OK. This will Turn OFF your debug logs, and an email addressed to mLog Support will be generated by your mobile device's email client with your logs attached.

  3. In the body of the email, let us know the estimated date and trip when the issue reoccurred, and then press "Send." We will create a ticket, and we will then diagnose the issue and respond with the necessary support.