Was Robb (Uvalde) an Operational School with Functioning Fire/Smoke Alarms?

It appears the smoke/fire alarm and sprinkler system inside the school building were deactivated prior to the event.

https://www.youtube.com/watch?v=lkW9fESv08E - Officer Jesus Mendoza bodycam

https://www.youtube.com/watch?v=-hp_-nly_SI - Officer Justin Mendoza bodycam

https://www.youtube.com/watch?v=MtBqIbxJWME - Officer Coronado bodycam

https://www.newyorker.com/news/dispatch/two-mothers-confront-the-unimaginable-in-uvalde - New Yorker article with account of classroom "filling up with smoke"

https://www.youtube.com/watch?v=bBofi_etkUo - Frontline video on Uvalde

https://www.youtube.com/watch?v=OyPTePoiI3M - hallway camera footage within West Building

https://www.youtube.com/watch?v=-SyPhgSQu0A - 20/20 ABC interview Ms. Avila

https://house.texas.gov/_media/pdf/committees/reports/87interim/Robb-Elementary-Investigative-Committee-Report.pdf - Texas House report on Uvalde