How to Fix Error 1013 on iPhone 4 when updating or restoring to 4.2.1

Hello iPhone users, here's a solution for those experiencing error 1013 when restoring or updating their iPhone 4. The problem occurs because Apple is unable to connect to the firmware hosts to complete the restore process. This is due to TinyUmbrella causing a block.

What should we do here?

Tinyumbrella v4.21.05 Downloads:

For Mac:

• http://hotfile.com/dl/98727984/482146f/Pa_La_Manzanita_Mordida.zip.html
• http://www.megaupload.com/?d=9H05VE1Q

For Windows:

• http://hotfile.com/dl/98728198/bf329b6/PA_LA_Ventanita.zip.html
• http://www.megaupload.com/?d=MXQX47TO

For Linux:

• http://hotfile.com/dl/98725890/f96548a/Pa_El_Patitio.zip.html
• http://www.megaupload.com/?d=68BN6ISA

Steps:

1: We open Tinyumbrella and go to the tab Advance

2:We deactivate the tab «Set Host to Cydia on....« And finally, we give Apply Changes

3: We must close the Tinyumbrella… The Tinyumbrella must be permanently closed for it to work.

Finally, we restored in iTunes again with iOS 4.2.1 without any problems with error 1013.;

Note: Not tested on error 1015 on iPhone 3G and 3GS…