I installed Cynogenmod 10.2 from this link
I am facing these issues
1. Battery drains very quickly even while I am not using WIFI
2. I lose all my contacts on the phone and I have transfered them many times but after sometime they disappear
3. My lockscreen become unresponsive and I have to restart the phone.
My Phonbe is Samsung Galaxy S advance I9070.
Please help as I am not able to post this in relevent forum as I am a new member