Best way to mow close to a wall?

The wall of my house goes straight along my lawn for several meters. I'd like the mower (Dreame A2) to mow as close as possible to the lawn. I tried two versions:
1. set the zone edge about 10 CM away from the wall: this results in a strip of tall grass alongside the wall
2. set the zone edge very close to the wall, but with obstacle detection at the edges on: the mower moves away too far from the wall
3. set the zone edge close to the wall and turn obstacle detection off at the edges: the mower bumps into the wall and gets stuck

What's the best way to mow as close as possible alongside the wall?

Hello,

We sincerely apologize for the inconvenience caused.

Please note that, to avoid collisions, the A2 will leave a mowing margin of approximately 5 cm along the edges of the lawn. We will continue to optimize this edge-cutting distance through future firmware updates. Kindly check whether your device has been upgraded to the latest firmware version.

You may also try enabling the “EdgeMaster” feature in the mowing settings. When enabled, the robot will offset the cutting disc while mowing along edges, which helps reduce uncut grass in those areas.

Thank you for your understanding and support.