After 3 min the GPS, the radio and the attitude indicator have failed

[fox67 0]

Hi I have a problem with my Katana, since a few days the GPS, the radio and the attitude indicator are failing after 3 min. I have tied to reinstall it but it doesn't work and the reset tool also doesn't work.

[Snave 466]

Nothing to do with the Katana. Your startup flight has the battery or the alternator switched off. Use a default flight then switch, or use the mode selection switch in the KatanaX