I had my phone rooted with the z4 app mainly to use titanium back up and ad block and when the gingerbread update went live today I unrooted with the z4 app to I could update. After I unrooted and rebooted my phone I got the update. I was able to download it just fine but 3 times tried to install it and every time the install failed. Any idea why? I never flashed anything on the phone and z4 say that it isn't rooted. Any help would be much appreciated.