The Dosimax Plus was dropped but seems to still work fine. However, it is not possible to see anything on the display. How can I change the contrast of the Dosimax Plus without seeing anything?
Important: Do not turn on the Dosimax
Press the Time- & on/off-Button for 10 seconds (when the Dosimax is turned off).
Press the Dose Button once.
Press the Doserate Button at least 15 times. The contrast will be changed and it is possible to see again the values.