Updating my 3gs, getting error code 21?

wattsworksllc · Jan 9, 2012

My phone is stuck with a itunes and usb plug in pic on phone.

Itunes say can't complete update error code 21.

I have an old 3gs (couple years old)
Was 4.3.5 bb 5.16.2
Jailbroken
Went to update using itunes. Have newest version of Itunes. updated today.

I went to apple help to fix to no avail. Appearrs to be related to security software, but I shut everything off and still not working.

Could someone please assist?

Thanks David.

Forgot to add I downloaded 5.0.1 update via this website but don't know how to use that either.

Chris951 · Jan 9, 2012

That happened to me too. Turned out my Internet was too slow and apple wouldn't let me do it. I had to go down to Starbucks and use their wifi and it worked like a charm. Does it start to update for a minute and then fail? If so, then that's what happened to me.

wattsworksllc · Jan 9, 2012

I am at home using internet connection. No WIFI.

So this is where I am at. Downloaded the 5.0 Restore file via this website. Changed the file to ipsw. Did the shift restore. Found location. went through restore procedure.

Now I am getting an 3194 error code. I haven't researched this one yet but getting frustrated.

Any help would be appreciated.