Some users have reported problems with using Titanium Backup (TiBu) on this device. If these problems are device related, I can't help troubleshoot that (I don't own nor have access to this particular phone). What I can do is provide a basic guide for how to use TiBu. I previously posted a version of this guide here. I have updated it slightly due to the previous instructions being nearly a year old. If anyone sees anything that need changed or anything that was left out...let me know and I'll update this.