Not sure where your vertical bars come from. Are they the usual modulation display ? If so, the update may have completed without you noticing.

The update normally takes less than 10 minutes. Restart your system, and see if it powers up normally. If not, try again with another update version.

Sorry you are having trouble.  On one side, updates can be troublesome, on the other, without being there, it's hard to know what is happening.