there are two service modes
first
- shut off
- push&hold on buttons 2 and 5 from left
- shut on and count to three, than off buttons
- now by pressing button 5 you will see service menu with presets and BI
second
- shut off
- push&hold on button 4 from left
- shut on and count to three, than off button
- now by pressing button 4 you will see service menu with timers
for now the newest firmware is V013
Greetings from Poland :-)