got itunes backup tetapi masa backup tu tak letak password (masa tu itunes takde opt letak password), bila itunes upgrade dia letak password sendiri walaupun opt for not password, akhirnya tak boleh recover...anybody got solution?

Before this the current (cannot remember Itunes version) Itunes version, there will no password for itunes backup. So when I backup, the default is no password. But after updating, I do not realise, it has add password settting for the backup where i did not chose to tick it, so when I want to recover, it asked me the password, which i never set in the beginning. So it just left like that...no recovery, have to start all from beginning, all my photos, data...luckily my contact can be recovered because linked to my Outlook. The itunes backup still there but I cannot recover it due to unknown password.

Never changed the apple id and password. Had tried them several times but failed.

Thanks for the thread link. My problem is exactly similar to those on the forum. This happened in 2013, already googled and looked for solution here and there. I just found out, i happen to once reset my password the first time i set up my itunes in 2011..waah, so hard to remember the password before that...adehh