ADB debloat, no root: pm uninstall -k —user 0 / pm disable-user of partner preloads, extra keyboards and Google extras
Follow the specialist sources linked on this page. If this path is a jailbreak, unlock, or flash, the specialist wiki is the how-to — we do not copy those steps here.
Notes
Same Reddit thread already backs the Mi Box S (1st gen) row; it names both models.