The Android 12 floodgate is open and most smartphone brands are rushing to offer up their own take on Google’s new OS. One such offering is Realme UI 3.0 which is officially coming to devices from October 13 but owners of Realme GT 5G in China are already able to sign up for the Android 12 closed beta. Realme GT 5G gets Android 12 closed beta in China As usual with beta firmware updates, Realme advises users to back up their device data before beginning the update. Users should have at least 10 GB of storage free on their device…