DREAME L40 ULTRA robot vacuum does not detect the dust bag

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Hello,
My DREAME L40 ULTRA robot vacuum does not detect the dust bag. It is properly installed. I bought this robot recently, on March 18, 2025. I have already done a few cleanings without any issues. I have tried removing and reattaching the bag, but it is still not detected. What should I do?

Try to clear cache in app, turn off the robot and the dock. After a few minutes turn on all and see if it works

Hello,
I found where the problem comes from.
The metal tip doesn’t go in properly.
So the device doesn’t detect the dust bag.
For example, if I press this button with a pointed object, the device detects the dust bag.
So we need to find a solution to keep this button permanently pressed…
Even when I insert a bag, it’s still not detected.
Do you have a solution?
Have a nice day.

When I press on the nozzle, the dust bag is detected.
But when I insert the dust bag, it is no longer detected.
We need to find a way to apply pressure on the nozzle so that it gets detected.

Need solution please 🙏

Dear XA639269,

Hello! This situation can only be solved by repair.

You can contact our after-sales department. Please remember to provide the SN number and invoice, and the after-sales department will give priority to your case.

If you need further assistance, please provide your service ticket number or contact us via me > Help & Feedback > Contact us > Online Customer Service.

if whole this app thing is not working im pretty sure you need to get to services center, this is some strange problem  which can happen from time to time when i had dreame service center guy fixed this, now i have other app and other self-emptying robot vacuum so i dont have this problems anymore hope you will fix this..