3/26/14 5:30 PM. Uploading phone numbers from your device to Google Contacts. On most Android devices, your contacts are automatically synced when you first turn on your phone and sign into a Google Account. So firstly, make sure to add your Google Account to your Android device.f not, then let's next make sure you have set to sync your Contacts to your Gmail account and not your phone 1  : Make sure that you have Gmail installed on your device. 2  Go to Settings, then go to âAccounts and Syncâ.
GATT. 1  GATT is an acronym for the Generic Attribute Profile, and it defines the way that two Bluetooth Low Energy devices transfer data back and forth using concepts called Services and Characteristics. 2  The following diagram should explain the way that Bluetooth Low Energy devices work in a connected environment.
In the example used in this document, the Android app (running on an Android device) is the GATT client. The app gets data from the GATT server, which is a BLE heart rate monitor that supports the Heart Rate Profile. But you could alternatively design your Android app to play the GATT server role.