Hi, I don't need assistance for my issue. I just wanted to inform you about it. I found that at least one other person had the same issue. Basically I wanted to update the firmware from 006 to 007 (and subsequently to 007A) and got the error. I have never rooted the device because I have never needed to. The cleanup of the System Update app cache didn't work, only the sys reset did. Unfortunate because I had a bunch of apps installed requiring login. I don't know the cause of the issue, but maybe you have some tips, or could look into it. Thanks for your great work, otherwise!