Hi, received my new BV7000 Pro just 3 days back, I charged it to 100% then started using it with no SIM card at home (wi-fi connection only).
On friday night battery was still 80% but the phone wasn't turning on. I connected the standard charger and suddenly the phone came back to life. Saturday morning same problem but no reaction at all, not even connecting the charger. Now the phone doesn't react at all.