Tried updating iphone recovery mode dating english feer site
This is because your baseband is flashed to the i Pad baseband () and i Tunes could not update it so it gave you the 1015 error.
You have two options at this point ; one is to update it to 4.2.1 using a custom firmware which matches your baseband or you can downgrade it to a lower 3.1.3 version.
This guide requires i Tunes and a computer, internet access, an i OS 10.3.3 ISPW file, and a USB cable.
There is no way to downgrade i OS 11 without i Tunes and a computer.
The latter cases you will need to repeat all the steps and this time you should lay more emphasis on Step 3 and Step 4.
You can downgrade to i OS 10.3.3 if you act quickly.
In this case, hold down the Home and Hold buttons as outlined above to restart the phone.
You were probably updating/restoring your i Phone 3G which was unlocked and i Tunes gave you error 1015.
After 10 seconds have passed, let go of the sleep/power button, but keep holding the Home Button.
Now, the Apple Logo will appear on you i Phone but you should not stop holding the home button until recovery warning pops up on your i Tunes.
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But since your i Phone is not turning on, you’ll need a different technique.