my phone is stuck on apple logo and wont restart, restore or update

I REALLY hope someone answers. I have the exact same problem

Is the battery charged ? Connect to wall charger for 20 minutes.

Reset. Hold Home and Power buttons till Apple logo reappears.

iPhone reboots. Connect in iTunes. Hit restore to update to iOS 6.1.2

Your Hosts file seems to be redirecting away from Apple. Edit it to delete all references to apple.com, Reboot and try.

Error 20, 21, 23, 26, 28, 29, 34, 36, 37,

These errors typically occur when security software interferes with the restore and update process. Follow Troubleshooting security software issues to resolve this issue. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.

Also, check your hosts file to verify that it's not blocking iTunes from communicating with the update server. See iTunes: Advanced iTunes Store troubleshooting—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > Mac OS X > The hosts file may also be blocking the iTunes Store. If you have software used to perform unauthorized modifications to the iOS device, uninstall this software prior to editing the hosts file to prevent that software from automatically modifying the hosts file again on restart.

Any luck?

This error also points to Hardware malfunction.

Time to get warrantee services from Apple.