Here is how to update a Leader SAT on an Android device:
Step 1. Plug your SAT to the power using the power supply
Step 2. Power on your SAT
Step 3. Make sure that your SAT is connected to your SUB
Step 4. Open the kien app
Step 5. On the SUB Leader tab, scroll down and click on the tile of the SAT that you want to update
Step 6. Scroll down and click on 'Firmware'
Step 7. Click on the 'Update' button
Step 8. Your speaker is updating. It should take between 15 and 30 minutes
Step 9. The update was successful!