Unfolded best-fitting models for the XMM-Newton EPIC-pn pattern 0 and Suzaku XIS-0 data. The spectral model is the best-fitting, physically motivated model M3 (Sect. 3.1). Solid curves: model evaluated at best fit value; dotted curves: model evaluated at the upper limit; blue markers: unfolded data; red curve: soft X-ray excess modeled by compTT; magenta curve: hot-corona power law; green curve: uxclumpy torus reflection model; black curve: the total unfolded X-ray spectrum. Panels (a), (b), and (c) show bright-state spectra; panels (d), (e), and (f) are for the faint state. These plots illustrate how all X-ray spectral components drop significantly in flux. The strongest drop is for the soft excess, which ultimately disappears in 2021.