Hue Indoor Motion Sensor question

[bertabcd1234]

Blinking red seems to mean that it can't reach the hub, or really that the hub can't reach back to the sensor:

Hue Motion Sensor blinks red when active?

if the sensor blinks red when it detects motion then the sensor is not receiving an acknowledgement from the hub that the motion event was received, that being said there's little hope that a firmware update will succeed as this requires much better communication between the hub and sensor than what you currently have.