Gionee Communication Equipment — gionee x1s

The gionee x1s is very unstable... It keeps misbahaving. Such as producing funny noises when listening to music and when you have notifications. It also sometimes rejects correct unlock passwords and pins forcing me to factory reset it, therefore losing data. It also locks out network and browsers keep telling you that it is maybe an antivirus software with firewalls blocking it. I have two other friends whom we bought the phones together complaining about the same problems.