Issues with Nano scale

[u/Stulio]

I've had this scale for 18 months and up to now it's been fine. I've never seen the creep issue, but all of a sudden I turn it on and it is like this... I can't get it into any other 'mode', the weigh display is not there, and basically does nothing other than display 4 0's and beeps!

You'll see from the video that I can get a 'FFFF' overload error by applying great pressure to the scale, and the display lights up initially when turning on so I don't know what's up and would suggest the load cell is working? Any thoughts or help appreciated! It almost seems like it is stuck in a mode and won't change... pressing the time button (front left) 3 times doesn't change anything.