Lost SRM data - 'force download' possible?

When I plugged my PC7 into the computer after my ride today, I was told there was a firmware update and I clicked yes to proceed
I did not realize that once I did this the days ride data would be removed!
When I then clicked on the download button, it had nothing to download…

Something to learn from, but wondering if this has gone for ever?
I remember seeing a thread in the wattage group about ‘force download’ whereby you could somehow find missing data

Anyone got any advice?
Thanks !

Try this post on the Google wattage forum. You’ll surely find an answer.