Neato D8 Firmware -

If your D8 is experiencing firmware-related glitches (e.g., flashing LEDs or failing to connect), the following steps are standard recovery procedures: Neato Botvac D3, D3 Pro, D4, D5, and D7 Firmware - GitHub

A known bug in firmware v4.4.2 caused map corruption after an OTA update. neato d8 firmware