I can not restore the IPAD 2

Good day!

IPad 2 3G 32 GB

there is such programs, in which the screen does not go out when idle and continue to live their lives and conserving device, like a week ago so left and forgotten in a day no matter how much tried to include not turn on when the system is charging appears to connect to itunes.

Now it does not start at all, can only be translated into DFU (HOME POWER 10 sec, then HOME 10 sec), the firmware was 5.x, I do not remember.

connected to itunes, trying to restore (PC with win 7 x64), removed the antivirus, firewall turned off, the error 1602 to latest firmware (6.1).

Sew while trying to previous official firmware using "SHIFT restore" - Error 1394

Sew tried to MACBOOK, the same mistake in 1602 to the latest firmware.

tried the above on WiFi or directly via ethernet.

read different forums, clean file hosts, back returned the 74.208.10.249 gs.apple.com to hosts, test it on a software update itunes and Windows, running the test in itunes, changed only the error number - 1602, 1601, 1600

do not want to put different jailbreak, like the official standard firmware, so that was or the latest firmware (6.1).

help advice what to do next, such as the standard operation of the recovery, the official firmware and it fails.

I NEED HELP!!!

Regards, D-A-N