Pre payment meter

We had a power cut and when the electric came back on the display on my pre payment meter is blank.
Does anyone know how I fix this as I don’t know when it will run out.

Does this help, I believe there are other discussions on this by using the search button:

Hello, this link you gave me is for the gas meter, however, it is my electric meter which has a blank screen. Can you help with this?

Possibly this:

Unfortunately I am not familiar with pre payment meters but using the search facility should bring up some more info.

If you are talking about the actual meters… press and hold the A button until it wakes up.

If you are talking about the In Home Display press the button on the back.