Fitbit: Cannot access GPS data on phone -> Update bluetooth library? - Android Q&A, Help & Troubleshooting

Hi,
Maybe someone has an idea: I've want to access my phone's GPS data on my Fitbit Charge 2 - this is not working (normal syncing however is working). The problem seems to be, that my bluetooth library on the smartphone doesn't allow 3rd party app code to access BLE. Is there a chance to update the bluetooth library?
VKWorld VK700x
Android 5.1
Bluetooth 4.0
Thanks for your help in advance,
Karin

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