Hello @Wayne-TP

The blinking red was slowly like whether the camera is connecting to networking but i reset it.
I am sure that nobody touched the camera or its settings. It seems that the camera has crashed for some internal reason.

I tried to reset camera and hub but the issue is the same.
I contacted my local support to replacement.

I opened this topic to report that the reset procedure (by button) is not very strong or not high priority on other operations because it is not possible to block a camera/user with deadlock operation as this one. The factory reset button must reset ALL operations in cache, RAM and so on in order to recovery the flash in ROM.

I have N devices Tapo and I am happy to use them but this firmware for this type of camera is a frustration whether I think to this issue and RSPT protocol blocked by default with official answer: "It is a camera with a battery we have blocked this feature because we think the battery can run out quickly."
Ok, I agree with you but for my personal opinion the feature(RSTP) have to be present then the user can be choose if enable or not.

The firmware for this camera MUST be improvement otherwise many users will left the Tapo products.