Segway Navimow X315A - 1500m2 Robot Lawn Mower

Not really happy, wasn't expecting it not to mow edges of the lawn

We have tried to get the mower to go closer the lawns edges. We have made sure that the way is clear for the mower but it still leaves 8 inches of grass on the edges uncut. We have programmed the circuit a few times but the mower is still not doing the edges of the lawn. We then have to go over that area ourselves with another tool to cut the grass it won't cut. This is unsatisfactory. If you are able to let us know if there is someway we can do this then I will happily change my review.