Need help with bluetooth le on an lgg3 with a 4.0+ OS

Hi everyone, this is my first post so please be gentle. I have a TI keyfob which works on Bluetooth LE to communicate. With other apps it will connect and communicate fine, so the connection is not an issue. Now, I pulled up the example code in Android Studio for BluetoothLeGatt, and used it to connect. It works fine connecting and reading data from the keyfob, but when I try to implement writeCharecteristic() into the code, it does not send the data (In this case it's a mere " 1 "). I was wondering if anyone got that to work and/or can help me.
If this is in the wrong section please move it.