MiniTiouner-S - LNB Voltage

This week I got the "MiniTiouner-S" from the REF-Shop (thanks REF for delivery within 5 days!).
Using Software "MiniTioune V0_9_9_1h" (what is the latest as far as I know) I can't swith LNB Voltage and measured 0V on both Tuner A/B. Switch is greyed out.
Using Software "Test My MiniTiouner V 2_3" the I2C performance is around 90% and Voltage switch for LNB A/B also greyed out. I guess there is a Version 2.5 but can't find.
Using Software "Scan & Tioune V0.1p" I can switch between 0V/15V/18V, but just on Tuner A.
Testing with "Check Minitioune Driver and Filters V0.4a" all lights green.
Anyone have an idea what could be wrong? Do I usse the correct software versions?
Thanks for helping!
Using Software "MiniTioune V0_9_9_1h" (what is the latest as far as I know) I can't swith LNB Voltage and measured 0V on both Tuner A/B. Switch is greyed out.
Using Software "Test My MiniTiouner V 2_3" the I2C performance is around 90% and Voltage switch for LNB A/B also greyed out. I guess there is a Version 2.5 but can't find.
Using Software "Scan & Tioune V0.1p" I can switch between 0V/15V/18V, but just on Tuner A.
Testing with "Check Minitioune Driver and Filters V0.4a" all lights green.
Anyone have an idea what could be wrong? Do I usse the correct software versions?
Thanks for helping!