Cannot add a sensor - Xiaomi Mijia Door Window Sensor

I recently updated the firmware on my zigbee stick, and as a result I lost all of my sensors. All of the sensors are Xiaomi Mijia Door Window Sensors. I have managed to re add 4, the the other 4 will not add for some reason. I also cannot find the manual for them.

I’m not sure if they need a factory reset.

I am holding the set button down until i see 3 flashes and then release. Then i see 3 more flashes and nothing happens.

With the 4 that were successful, phoscon would immediately recognize them as soon as i released the set button.

Any help would be appreciated

According to this:

Pairing Instructions

Press and hold the button on the device until the blue light starts blinking, release it and the pairing should begin.

If you’re having connection or pairing issues read Xiaomi & Aqara Devices - Pairing & Keeping them connected.