The image that you upload from the OP177B cannot be edited !
It can only be downloaded to an identical OP177B.
You can start be attempting to retreive the image using Prosave.
If that goes well, you can try to get a spare OP177B. They are being sold by resellers and on ebay.
Here is the link:
https://support.industry.siemens.com/cs/de/en/view/10347815