That's how I did it as well. I did a 1.5.22 to 1.5.23 upgrade w/ Admin Tools 2.0.2 and I had no problem. In fact, when I accidentally forgot the query string when trying to access my site from my cellphone two days ago, it threw me back to the front-end, so I'm pretty sure that feature was working :) When I upgraded to Admin Tools 2.0.3, no problem noted. That's strange... It's like the "System - Admin Tools" plugin was unpublished for some reason. When you upgraded, the installation code forces it to be enabled, so maybe that's why after upgrade everything was working again. Does that make sense?
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!