Last updated April 16, 2019
Some of our customers are experiencing a Bluetooth® disconnection with their Arrow Series™ GNSS receivers after upgrading to iOS v.12.2. Eos Positioning Systems® (Eos) is aware of this issue, and we are currently investigating the cause with Apple. In the meantime, while we are working round the clock to resolve this problem, we would like to present you with a temporary work-around solution.
Please note that this is not a generalized problem, meaning not all iOS users are affected, and only a small number of our customers have reported it.
The symptoms: How to tell if you are affected by the Bluetooth® disconnection issue
After updating to iOS 12.2, an affected device will display the disconnect splash screen (shown below) of Eos Tools Pro. The splash screen appears on your iOS device with this message:
“Looking for authorized connected devices“
Meanwhile, the blue LED light (indicating Bluetooth connection) on the Arrow receiver itself will remain solid blue; this would indicate an active connection, contrary to the splash screen.
Note for customers not using Eos Tools Pro (e.g., non-RTK users):
If you are not using Eos Tools Pro to connect to an RTK Network (which in most cases, means you are using SBAS service or Atlas® subscription as your differential corrections source), then you might wish to confirm that you are also not affected by this issue.
To do confirm your status, launch Eos Tools Pro and make sure your iOS device is communicating properly with your Arrow GNSS receiver. If all is going well (i.e., you are unaffected), then the above Eos Tools Pro splash screen will not appear.
Please note: If you are experiencing unusually high estimated accuracy values in your mobile data collection app — one which uses your device’s Core Location — then you should consider that you might be affected and run Eos Tools Pro as indicated above.
Possible Cause: Apple iOS 12.2 Glitch
We believe, based on the evidence currently available from known-affected customers, that this disconnection issue is being caused by a potential glitch within the Apple iOS 12.2 connection stack. This is especially plausible if your iOS update to 12.2 was performed while there was an active Bluetooth®® connection between your device and your Arrow receiver.
Temporary Work-Around for the Bluetooth® Connection Issue:
Here are the steps to follow in order to fix the problem. Please note that until a complete and permanent resolution is identified through our investigation with Apple, these steps might have to be repeated, if the issue re-appears:
- Close the Eos Tools Pro app
- In your device’s Bluetooth® Settings, unpair the Arrow receiver with “Forget This Device”
- Switch OFF the Bluetooth® on your device.
- Power OFF your Arrow receiver.
- From the iOS Settings in your iPad or iPhone, tap on
“Settings > General > Reset > Reset Network Settings”
Enter your passcode and confirm the reset.
Note: You will lose any Wi-Fi settings you had entered previously, and your device will ask you to re-enter your Wi-Fi credentials.
- After rebooting your iOS device, turn your Bluetooth® capability back “ON” in the iOS “Settings” menu.
- Power “ON” your Arrow receiver. It will now appear in the iOS Settings list of available Bluetooth® devices.
- Tap on your Arrow receiver to select it, which will pair it with your iOS device and show “Connected” as the status.
- Now, launch Eos Tools Pro and confirm that the disconnect splash screen no longer pops up. You have successfully resolved the issue.