The SD card is SanDisk high endurance, it's the same I used on both doorbells. After I removed it and check on laptop I can see videos there on the laptop, but after reinserting it in door bell it...

@Wayne-TP 3.7.811

I've 2 D235 and this has happened to both a few times. Both same revision and same firmware They'll be working away and then one day all the recordings can't been seen it just says "No recordings" ....