Kase depende sa fb account attributes inside of MobileConfig even Gatekeeper Override. Example yung account mo naka join ng beta release, or such FB app and FBM nag i switch remotely in MobileConfig or GK settings pwede nman bagohin sa internal settings kaso naka tago sya pwede nman i unlock yan...
Pag ayaw *#0011# if mediatek chipset i think tas tap 3 dot menu or hamburger menu then choose BACK, tap 3 dot menu again choose KEY INPUT then type Q0 and wait for a while until you directly to main menu section, tas hanapin nyo na lng ng Band selection, pa iba iba kase ng pwesto ni samsung...
Tsaka pwede ibain ng proxy server (ewan ko lng kung pwede lalo na sa see photo trick well idk haha) nasa Sandbox section yun i mod nyo na lng tas i unlock mo ng internal settings ni messenger then i explore nyo na lng anong functions yan
Stable yan kaso other features naka lock like Mobile Config (pwede i adjust ng time limit ng my day and more features di nag release globally) pero accessible na sya just now however iniba nila ng param names for some reason