A few weeks ago I bought a Gladius Mini S here in Gernany to check if I could use it for a tv underwater documentary. Already on the first dive we got problems with diving after 20 minutes testing various dices and movements in a lake (not deeper than 2-3 m). Now it doesn‘t want to dive again. The engines try, but sonething doesn‘t work, it doesn‘t get down. Anyone out there with a similar problem or any idea to solve that? Michael