Hi there and welcome
Just to check, when you say SIM card which is for a phone, you mean SD card correct? The memory card?
If so, can you remove the battery from the camera then hold the shutter button down for 60 seconds then release.
Put the battery back in, turn it on and tell me how it then functions please
Thanks Fran, and no problem, just wanted to ensure that the Sim card being used was the cause of the issue.
When the screen goes black, can you still take a photo?
Is the battery fully charged?
It is the internal mainboard that has faulted.
We have ruled out all other causes for this
I am really sorry about this and you are going to have to return the camera to have this replaced. It will be covered by the warranty if this has not expired, and the replacement will be done at no cost to you.
I am really sorry about this, and if you have problems, or would like any additional information or assistance, please do not hesitate to let me know.
And if you can take a second to rate my service, that would be greatly appreciated.
your welcome Fran
Let me know if you need anything else, and please remember the service rating via one of the stars at the top then submit