I’ve deployed numerous iRobot and Neato units over the years. My previous iRobot fleet served faithfully for five years; they are easy to repair, but their performance has fallen behind, and the mandatory cloud tethering is a strategic disadvantage for any privacy-conscious home.

The Dreame X40 Ultra is a superior piece of hardware, but to truly own it, I had to strip away the cloud requirement.

The Mission: Local Control

To achieve full autonomy, I used Valetudo. It replaces the cloud interface with a local web server, keeping the data off external servers and locked within my IoT VLAN and Home Assistant instance.

The X40 at the docking station

The Hardware & Intel

  • The Bridge: I used the Valetudo Dreame Adapter PCB breakout board.
  • The OS: Modern Dreame units run Allwinner CPUs. Rooting involves a fastboot (Android) hack process.
  • The Logistics: Dennis Giese’s builder is the gold standard for generating the necessary firmware.

The breakout board and adapter

Field Notes & Lessons Learned

  • Legacy Tech: The breakout board requires MicroUSB. I had to conduct a “basement recovery op” to find a functioning cable in 2026.
  • The Manual is Key: There is a specific power-on sequence between the PCB and the robot. If you don’t follow the documentation to the letter, it won’t trigger.
  • Hardware Check: Do not forget to remove the OTG jumper once the flash is complete.
  • Processing Power: Looking at the Cray Supercomputer paperweight on my desk, it’s a bit of a pun-ch to the gut to realise this vacuum likely has more FLOPS than the titans of the 80s.

The Cray Supercomputer comparison Cray Supercomputer components alongside the project.

The Result

The entire operation took roughly 60 minutes once prepped. The UI is clean enough that I’d feel comfortable handing the controls to a non-technical user. Most importantly, my daughter Ada assisted with the “deployment” and took charge of the most critical task: naming the unit.

Valetudo Map Interface

If you value your privacy and want the best mapping performance without the data harvesting, this is the way.

Note: I have a few spare PCB breakout boards. If you’re looking to root your own Dreame and want to skip the fabrication step, drop me a message. Happy to send one out for the cost of shipping (CONUS).