thanks xuggs & vivek5000 With ur guide i can able to install gingerbread in my N900 but there is only one problem i found is about CALLS. I attend a incoming call where i couldn't hear anything from caller & there was only noice was listen by caller(hisssss sound). Is there any update to fix this problem? plz help... Also i'm here in UAE(Dubai) & using du network (3G)... abbas