I connect to internet says it has update press update then it loads to 100% and goes to page says roku the letters jump and circle but nothing else happens been doing this for 15 minutes? What’s going on?
When reporting problems it's always a good idea to report your Roku model and model number as shown via Settings > System > About. Often the answers you seek depend on your Roku model and if we have this information to start with, you can get targeted suggestions more quickly.
*If you have a Roku model that has an SD card slot, a corrupted installed card can prevent the Roku from advancing beyond the "bouncing letters" startup screen when powering up, just as you describe. Try removing the SD card and restarting.
You may be able to salvage the card. Try formatting the card in your computer, if it has a card reader that can handle SD cards. After formatting, see if the Roku will detect and reformat the card successfully.
Also, see if this post helps: https://community.roku.com/t5/Remotes-Accessories/Added-SD-Card-Remote-no-longer-works/m-p/646676#M1...
Windows instructions, don't know what would differ on other systems:
Do a slow (i.e. not "fast") format of the card via your computer. Select FAT32 and select it to use the default allocation size.