Blue rapid flashing status light at end of upgrade

Started upgrade to OS 5. Download completed. Now have rapid flashing blue light. Still flashing after 24 hours.
Have 2 WD My Clouds. No problems with upgrade to 1st one.
I can’t communicate with the one with the flashing blue light.
Any suggestions?

If you haven’t done so already, use the forum search feature (magnifying glass icon upper right) to find several past discussions on the rapid flashing blue LED. There may be some suggestions in those past discussions that may help.

Took over 24 hours for my MyClouds to stop indexing after I upgraded. How big is your drive?

It is a 6 TB. Did the blue light flash while during indexing? When I updated my 4 TB I could access it.

I could access the dashboard but the actual file folders just locked up until it was finished. Sorry, I don’t remember if the blue light was solid or flashing. My drives were a 3TB and a 4TB.