Hi everyone I also buy opportunity f7 I replaced the phone in 3 days .issue is this phone is charging & heating problem same but now it’s also heating in charging pls tell me VolTE incoming call is not working , even replace the 4G sim slot from 2 to 1 . However outgoing call is working well.VolTE incoming call is not working , even replace the 4G sim slot from 2 to 1 . However outgoing call is working well.online game really bad bro I have been using it almost a month after playing a game my phone heats up