However, for tinkerers, an unofficial LineageOS build transforms the SM-T210R from a e-waste candidate stuck on Android 7 into a usable web-browsing Kiosk or a dedicated media controller running modern Android software. Success depends entirely on finding a recent, stable unofficial build on XDA and accepting that some hardware features may not function perfectly.
Find the unofficial SM-T210R ROM zip on XDA Developers . smt210r lineageos work