A service manual level 1 to 4 is what you need. Very detail troubleshoot diagrams. Download it here: Level 1 & 2: http://rapidshare.com/files/31426603..._Level_1_2.pdf Level 3 & 4: http://rapidshare.com/files/34690645..._Level_3_4.pdf Credits to Moz at NokiaUsers
I need the password for this file ??