It must be T510ZCU3ATC2 also FRP OFF OEM OFF KG OFF And After Flashing Press Vol UP with Power button . Also you have to intsall Magisk Manager apk after all .
It must be T510XXU3ATC5 also FRP OFF OEM OFF KG OFF And After Flashing Press Vol UP with Power button . Also you have to intsall Magisk Manager apk after all