As always be very careful working on your sensor!
There are many promising solutions to clean your sensor but all failed. I have tried 3 different methods and non of them worked. I have spend money on specialized vacuum that could not do anything, I have used a silicon sticky method to take dust out but left residue, I have tried the brush method which left me with more dust on the sensor. In the video below you will find out how to clean your mirrorless camera sensor in a very easy and efficient way. I came up with this method after being left with a lot of dust from the other methods and could not send my camera to Leica labs which is the way if you have the money and time.