With Hybris Sales Cloud for Customer – 1802 upgrades the silverlight is no more supported.
For administrators switching back and forth between RUI/Fiori client is a necessity.
Earlier, switching between RUI and HTML client we just had to edit the HTML URL as indicated in below blog post :
With 1802 upgrade the url is now different than previous RUI versions. The current RUI/Fiori client URL looks something like below :
To get to HTML5 Client we can add the following parameter in the URL and voila you will be in the HTML5 client doing the Admin stuff.
Hope this helps.