When I activate the Alt hold mode, I´m unable to raise my quad.
In AH mode, throttle stick position is used as a baseline for altitude maintenance. This means, that altitude can still be manually changed by raising or lowering the throttle control beyond a large central dead band (copied from the wiki)
Actually, I can descend by lowering the throttle, but not ascend. When I raise the throttle, motors spin always the same as they did when AH mode was activated.
Context AC V2.8.1, APM2.5