Boost Prepaid sim won't work in unlocked optus phone.
I'm having a problem with my unlocked s8+ that was previoulsy contracted to optus. When i insert my boost prepaid sim card, it can't use data or make/recieve calls and texts.
I've tried resetting the netwrok settings, changing the apn settings, selecting the network manually, I've factory reset it and still doesn't work. It says that it's not registered on the network or that it is unavailable. The sim still works in my s7 but doesn't when put it in the s8+, i've put a different sim into it and it won't work. I tried using the boost app and says there is "No Connectivity".