I got unknown error 21 on iTunes when I try to restore my Ipad2
It all started when I was deleting an e-mail (from an uknown adress), then Mail was closing and I went back to my homescreen.
Suddenly I see that all my purchased apps where gone, only shortcuts to Safari and the original Apple programs were in place.
Then I tried to push the home and the power button to restart the device, it turns back on again without any affect.
I connect my Ipad to the Mac Pro running OSX 10.6.8. and open iTunes, then I tried to recover a safety copy from the list, without any luck.
The result of this ends with a device showing just the Apple logo a while, and then the iTunes wire.
The problem with showing "unknown error 21" in iTunes seems to be a usual Windows third-party issue, but I`m running it on a Mac.
I tried all basic steps in the Apple support, but it still came back with the message: "detected iPad in recovery mode...you will have to restore it before it can be used with iTune", and then a message that tells me the Ipad device can not me restored, unknown error 21.
I have no firewall, the time is correct, I`m running the latest iTunes version 10.6.1, I can connect to the iTunes store and it looks okey.
I connected the original 30-pins connector on the back, unpluging all other USB-devices, I checked this and several other things, but I just can`t get it to work.
Before it turned into this "Brick" I noticed that the indication on used memory for programs (green) went down to zero,
and "other" (yellow) were the biggest area ( app.14 GB )
HELP !
did the google for you here are some hits
https://discussions.apple.com/thread/3618822?start=0&tstart=0
http://forums.techarena.in/portable-devices/1351249.htm
if you want more hits
https://www.google.com/search?source=ig&hl=en&rlz=1G1TSEH_ENDK367&q=identify+ipa d+model&oq=identify+ipad+m&aq=0&aqi=g2g-sv1g-b3&aql=&gs_nf=1&gs_l=igoogle.3.0.0l 2j0i10i15j0i8l3.143541.147315.0.148650.15.15.0.2.2.0.121.1185.10j3.13.0.#hl=en&s ugexp=frgbld&gs_nf=1&tok=AJBeX1ush6FgeyPb2oiWCA&pq=identify%20ipad%20model&cp=17 &gs_id=7&xhr=t&q=unknown+error+21+itunes&pf=p&sclient=psy-ab&rlz=1G1TSEH_ENDK367 &oq=unknown+error+21+&aq=0&aqi=g4&aql=&gs_l=&pbx=1&bav=on.2,or.r_gc.r_pw.r_cp.,c f.osb&fp=c5ff0959a78b1649&biw=1732&bih=792
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<Subject Edited by Host>Hello, 02633.
Thank you for visiting Apple Support Communities.
If your iPhone is disabled, you will need to process the steps in the article below.
iOS: Forgotten passcode or device disabled after entering wrong passcode
http://support.apple.com/kb/ht1212
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