If the iMETOS 3.3 no longer sends data, the reason for this may be the SIM card. To be able to check the SIM card, you have to remove it from the holder on the circuit board. please proceed as follows:
- Open the housing of the weather station
- Slide the metal part aside to open the holder (see picture below).
- Fold the holder up and insert or remove the SIM card.
- Clean the contacts on the SIM card carefully.
- Insert the SIM card again.
- Fold the holder down.
- Close the holder by pushing the metal aside.