Hi,
have you noticed that when Adnroid device is paired with Genuino101 (CurieBLE) and then you turn bluetooth off , Genuino keeps the connection?
Example:
void loop() {
BLECentral central = blePeripheral.central();
if (central) {
while (central.connected()) {
Serial.println(F("connection"));
delay(1000);
}
}
}