getting system error in Nokia N8 when installing apps

[Jrashesh]

I have purchased Nokia N8 and I have found getting a system error message continuously when I try to install application. When I tried to install applications such as Nokia Battery Monitor and YouTube Downloader and I got a system error message. This happened after I updated to Symbian Anna. I tried to delete and reinstall those applications but nothing has worked. What should I do?? Any help would be appreciated. Thanks in advance.

[Memphis M]

I will suggest you should hard reset your mobile phone and then update your mobile phone through OVI. I think this will solve your issue. Give me your feedback if it works.

[Jrashesh]

I tried the hard reset and updated my mobile via OVI but nothing has worked for me. Now I am unable to get all my contacts. After that it took many attempts to install OVI chat. I pressed *#7370# to restore the factory settings but still nothing worked for me. It is very frustrating for me. Does anyone have solution for it?