The solution is simple:
Modify the HOSTS file
Delete the file HOSTS.UMBRELLA
We need:
Being on the pc as administrator
Have enabled from the folder options to view the system folders.
Let's begin:
1. Open My Computer and go to the path: C: / Windows / System32 / drives / etc. There we will see the hosts and hosts.umbrella files
2. Now modify the hosts file. Press twice on the window and select options or program opens, select Notepad, for example:
3. Locate the lines that have the end gs.apple.com and delete (may have one or more, the erase all)
4. We press the X in the window and the program prompts you to confirm the change
5. Now go back to My Computer and focus on the Hosts.umbrella file. Click on the right mouse button and select Delete. A window will open asking for confirmation:
6. After all this we will be something like this:
Now this, now we can try to update / restore to 5.0.1 and avoid 21, 3194 and 1013.
Note: The screenshots are from Windows Vista, XP or W7 screens or options may vary somewhat.
Well I hope you have served and I again recommend that you keep to favs because maybe one day happen to them (like me I never past but today I step) and might not find it.
Luckily all things send me a PM if you need anything