Your māoï switched to security mode only:
- in case of violation of a compulsory decompression stops (and if you have not returned to a depth below the ceiling of the decompression stops within 3 minutes)
- if you exceed the maximum diving depth defined by the breathing gas (MOD) and the parameterized maximum oxygen partial pressure (PPO2 max)
There is nothing to do, your māoï will unlock itself after 48 hours. There is no code to unlock your māoï.
The very principle of a dive computer imposes this mode of operation. Indeed, māoï is based on a Bühlmann ZHL 16C algorithm for the decompression calculation. Like any algorithm, it is valid only in a very specific operating range. When you leave this operating range, the values from the algorithm are no longer valid.