My iphone 4 8gb is not updating or restoring to ios6.1.3 its shows sum error (21) or your iphone is not eligible for this build
my iphone 4 8gb is not updating or restoring to ios6.1.3 its shows sum error (21) or your iphone is not eligible for this build
Read this for error 21
Error 20, 21, 23, 26, 28, 29, 34, 36, 37, 40
These errors typically occur when security software interferes with the restore and update process. FollowTroubleshooting security software issues to resolve this issue. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.
Also, check your hosts file to verify that it's not blocking iTunes from communicating with the update server. See iTunes: Advanced iTunes Store troubleshooting—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > Mac OS X > The hosts file may also be blocking the iTunes Store. If you have software used to perform unauthorized modifications to the iOS device, uninstall this software prior to editing the hosts file to prevent that software from automatically modifying the hosts file again on restart.
Similar Messages
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My iPhone 3GS decided to turn itself off (on 30% battery) yesterday and hasn't turned on since. After some testing (hard resets, DFU mode), tiny umbrella recognises it in DFU mode, as does Redsn0w. neither devices can successfully kick the phone out of the restore loop.
The screen stays blank throughout, no apple logo, connect to itunes logo etc. however every now and then the charging sign will appear (empty battery with a little bit filled (red)). even if i unplug it from my iMac the charging symbol stays there.
once I get the phone in DFU mode iTunes recognises that there is a phone connected that needs to be restored, it doesn't matter if I click restore or option + restore the process will fail on Error 1600 or "this device is not eligible for this build".
My iPhone is not unlocked or jailbroken. Before the incident with the coffee I managed to synchronize and update its firmware as indicated by iTunes. The latest update for my iPhone was iOS 5 firmware. My intent is not to unlock or jailbrake the device, just to make it work again.
Here are some things I've tried since:
1. Exiting recovery mode via Tinyumbrella
2. Entering DFU mode via Redsn0w
3. Shift + Restore and using firmwares from 5.0 to 5.0.1 to upgrade my iPhone.
4. Remove hosts to my Host file (in relation to the "device not eligible for this build" issue)
5. Try redsn0w and use IPSW to see if it is recognized by iTunes (iTunes recognizes the iPhone but then at the very last minute shows error 1600.
6. Save SHSH files and use Tinyumbrella to uploaded them to my iPhone.
I would really appreciate if someone can help me on this. I might be doing something wrong or maybe not even considering the right steps to solve this issue. I don't know if there are missing drivers that are preventing the device from communicating with iTunes properly. Of some tool that can be used to correct this problem. It may or may not be fixable but I think it is worth the try.
Thanks very much.please ignore the comment about coffee. Someone posted a very similar question apart from he spilt coffee on his phone, I didn't.
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I cant open my iphone, its showing that ( iphone is dsabled, connect to itunes) when i connect to itunes its showing message on computer screen that ( itunes could not connect to the iphone, because it is loked with passcode. you must enter your passcode on your iphone to connect with itunes.
appreciatedPlace the iPod in recovery mode and then restore the iPod to factory defaults/new iPod. For recovery mode see:
iPhone and iPod touch: Unable to update or restore -
I have restored my iPod touch 4G to the iOS 4.3.5, then I tryed to update/restore with the iOS 5 and it pops an error saying my device isn't eligible for this build, how can I solve this issue?
Here's what I found about the error you mentioned, copied from http://support.apple.com/kb/TS3694
This device is not eligible for the requested build: Also sometimes displayed as an "error 3194." If you receive this alert, update to the latest version of iTunes. Third-party security software or router security settings can also cause this issue. To resolve this, follow Troubleshooting security software issues.
Downgrading to a previous version of iOS is not supported. If you have installed software to performunauthorized modifications to your iOS device, that software may have redirected connections to the update server (gs.apple.com) within the Hosts file. First you must uninstall the unauthorized modification software from the computer, then edit out the "gs.apple.com" redirect from the hosts file, and then restart the computer for the host file changes to take affect. For steps to edit the Hosts file and allow iTunes to communicate with the update server, see iTunes: Troubleshooting iTunes Store on your computer, iPhone, iPad, or iPod—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > The hosts file may also be blocking the iTunes Store. If you do not uninstall the unauthorized modification software prior to editing the hosts file, that software may automatically modify the hosts file again on restart. Also, using an older or modified .ipsw file can cause this issue. Try moving the current .ipsw file, or try restoring in a new user to ensure that iTunes downloads a new .ipsw. -
plz help me guys
Most often due two one of the following.
1 Install current version of iTunes, older Macintosh Systems will not support current version of iTunes, make sure you have current version of iTunes.
Or
2 Your computer Hosts file is blocking Apple from communicating with iTunes. To determine this, search Hosts on computer, then open Hosts file with a word processor. If the Hosts file contains this, gs.apple.com it is blocking Apple. This line with its number must be inactivated (removing it works). A stock Hosts file does not contain this or block Apple.
Here is Apple information on this problem:
"This device is not eligible for the requested build: Also sometimes displayed as an "error 3194." If you receive this alert, update to the latest version of iTunes. Third-party security software or router security settings can also cause this issue. To resolve this, follow Troubleshooting security software issues.
Downgrading to a previous version of iOS is not supported. If you have installed software to perform unauthorized modifications to your iOS device, that software may have redirected connections to the update server (gs.apple.com) within the Hosts file. First you must uninstall the unauthorized modification software from the computer, then edit out the "gs.apple.com" redirect from the hosts file, and then restart the computer for the host file changes to take affect. For steps to edit the Hosts file and allow iTunes to communicate with the update server, see iTunes: Troubleshooting iTunes Store on your computer, iPhone, iPad, or iPod—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > The hosts file may also be blocking the iTunes Store. If you do not uninstall the unauthorized modification software prior to editing the hosts file, that software may automatically modify the hosts file again on restart. Also, using an older or modified .ipsw file can cause this issue. Try moving the current .ipsw file, or try restoring in a new user to ensure that iTunes downloads a new .ipsw." -
When you update you iOS, have you seen this error message: not eligible for this build? The serial
Dear Mr. Jobs,
My husband has been an avid supporter of Apple, having purchased a great deal from you over the past many years. Personally, I have been an iPhone user since it was introduced a few years ago.
In July 2010, I stood in line at the Apple Store in the Stanford Shopping Center to purchase the iPhone 4. In February of this year, I tried to update the iPhone and got the 'sign of death'. My iPhone turned into a piece of brick and I was not able to make any phone calls, which at that time, was very inconvenient. I remember having to coordinate a pick up at the airport early the next morning and my phone was dead. Apparently, in trying to update the phone, it corrupted the firmware and I could no longer activate that phone. It was a frustrating experience on the eve that I had to go to the airport and I spent hours trying to see if there is anything that I could do to get the phone back in working order.
The following day, I made an appointment with the genius and my husband and I took the iPhone to the Stanford Apple Store to see if there was a problem with the phone. Without hesitation, we were asked if we purchased the phone overseas. Of course, as Asians, they probably thought that we purchased it in the black market in China. After hearing our response, their next question was whether we hacked the phone. Why would they bring up these issues? Rather than immediately delving into the problem, we found it very annoying that the employees would tried to divert Apple's problem to us. After trying to diagnose the problem, they gave us a new phone and activated it using their in-store computer.
We took the phone home, thinking that the problem had been solved. When we got home, we tried to update the iPhone to no avail. The firmware was corrupted and we had to once again, bring the phone back to the Apple Store in the Oakridge Mall in San Jose. The Apple employee told my husband to go to the AT&T store, as there was potentially a SIM problem. My husband went to the AT&T Store and was told that they couldn't help him, as the SIM was fine. They did, however, replace the SIM so that there would be no issue.
In April, when there was an upgrade to the iPhone software, we once again tried to update the software and was unable to. Once again, the firmware was corrupted and we were forced to take the phone back to the Stanford store. Again, they asked us if we purchased the phone overseas. Why? They could have easily looked at the records, but no, your records are so bad that you are unable to pull it up. That afternoon, we spent four hours at the store, updating the OS on the computer as well as updating the iPhone. They assured us that they solved the problem.
This past weekend, as there was another update to the iPhone software, we were once again unable to update it and were forced to take it back to Apple. Again, we were asked, did you buy the phone overseas. It's very frustrating and annoying to repeatedly get asked that question. After a series of back and forth communications between the genius and my husband, we were told that they didn't know what the problem was. This time, we told them that we would not be leaving the store until they solved the problem. We have an Apple computer and an Apple iPhone, so 'Apple' should find the source of the problem and fix it once and for all. The genius then suggested that we migrate the data from my computer to my husband's computer and try to update the phone using my husband's computer. We didn't accept that answer.
Our genius then asked the help of a second genius and after taking his suggestion, they found that the serial number for my iPhone had been assigned to France Telecom. Once again, they asked if we bought the phone overseas. Why? Please train your employees to not accuse the customers of doing this. Many of us are honest and we take offense to this. In fact, we told them that we purchased the phone from the Stanford Store (where we were at). After looking for the record, they said that we must not have purchased it from them. The onus, then, was up to us to prove that the phone was, in fact, purchased from the Stanford Store. Fortunately, my husband saved the email and was able to show the genius that the phone was purchased from them. How could your records be so poor as not to be able to find our purchase?
After two hours at the store, we were told that we, not Apple Stanford, had to call customer care to resolve the problem. Being that this is an Apple problem, I would have expected Apple to follow up on our behalf. Why is it that the customer has to spend additional time to deal with an issue that was caused by Apple.
My husband has been dealing with customer care, who apparently has escalated the problem to other divisions within the organization. It's been two days and the problem still has not been resolved. In fact, the answer remains that they are not sure how to resolve the problem. Why can't you update your system and redo the record so that I can go on in peace. Every time I try to update the software, I'm afraid that I won't have a working phone. Do you blame me?
This has been one of the worst experiences that I have had with an Apple product and it still is not over. Collectively, my husband and I have spent over 25 hours dealing with this issue both at home and at various Apple Stores. It has been a hassle having to go from place to place, having to sync the phone multiple times, having to update the software multiple times on both the computer and iPhone and ultimately, not having it fixed once and for all. Please let me know how you expect to compensate us for this experience and how and when you expect to fix my iPhone issues.
Mr. Jobs, I know that you expect perfection from your team. This has been a tremendous waste of time for my husband and me and has been a less than stellar experience.
Regards,
Lea Anne NgWith that one, I'd check on your Hosts file on your PC, Lea.
Follow iTunes: Advanced iTunes Store troubleshooting to edit the hosts file or revert to default on Windows. See section "Blocked by configuration: (Mac OS X/Windows) > Rebuild network information". -
HT4972 While trying to update my IPad device to iOS 5 its show an error occur while
Need help updating iPad
What error message do you get ? If you are getting a network timeout when downloading the update on your computer then try temporarily turning off all your firewall and antivirus software until the download has completed. If it's a different error message ... ?
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My phone says it needs to connect to iTunes. I do this and it will not update or restore factory settings?
See Here > http://support.apple.com/kb/HT1808
You may need to try this More than Once...
Be sure to Follow ALL the Steps...
But... if the Device has been Modified... this will Not necessarily work. -
I have updated iOS7 today via iTunes as I was not able to update it directly in the iPhone. After the update I restored the back up and now the iPhone is not getting started. Please advice?
That error message suggest you have a permissions issue. Make sure you have full read/write privileges for the Drive/ Folder location that you are copying the files to.
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this was not helpful, my iphone will not update or restore and my itunes will no longer reconize it, what should I do?
iOS device not recognized in Windows
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HT201210 My iPhone will not update or restore from iTunes. It's frozen
My iPhone will not update or restore from iTunes. It's frozen
You may be in a recovery mode follow this article http://support.apple.com/kb/HT1808
If you have a backup you can restore your contents by following this article
http://support.apple.com/kb/HT1414
Good Luck! -
My iPhone stopped when i tried to update now it will not update or restore HELP
iPhone and iPod touch: Unable to restore
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I am trying to update my Iphone 3 and when i get to the activation step after a few minutes it shows a message that says " Your iPhone could not be activated because the activation server is temporarily unavailable. Try conenecting your iPhone to iTunes to activate it, or try again in a couple of minutes.
If the problem persist, contact apple support at apple.com/support
I been trying for a few times now and I keep getting the same message. How can i fix it? now my phone doesnt work.These are the steps mentioned in the article iPhone: Troubleshooting activation issues
Perform the following steps if you receive one of the messages above:
Restart the iPhone.
Try another means of reaching the activation server and attempt to activate.
Try connecting to a known-good Wi-Fi network if you're unable to activate using a cellular data connection.
Try connecting to iTunes if you're unable to activate using Wi-Fi.
Restore the iPhone.
If you receive an alert message when you attempt to activate your iPhone, try to place the iPhone in recovery mode and perform a restore. If you're still unable to complete the setup assistant due to an activation error, contact Apple for assistance. -
I had backed-up my iPhone and when I try to restore it it says that the back-up is corrupt or the iPhone is not compatible. I had a bunch of pictures that I need from that restore. Is there any way to get them back? I did the back-up to my Macbook
If the backup is corrupt, there is nothing that can be done.
For what reason did you choose to not copy the pictures off the device to a computer prior to attemping an update or whatever caused the need to restore? iPhones are not intended as sole storage of any media. -
IPad will not update or restore to factory settings.
My iPad Air is stuck in recovery mode. I was using my iPad to watch Netflix when all of a sudden the screen display had lines going through it and then the device shut off. I plugged it in to charge, since it was almost dead and left it for a few hours. When I came back and tried to turn it on, it would not turn on. After a few attempts it did. and seemed to be working fine for about 5 minutes, until I tried to close a few apps, and same thing happened, lines through the display and then turned off. I tried to plug my iPad in to my computer to update it, but it must have malfunctioned while updating because then it went into recovery mode. I tried to restore the iPad to factory settings and I keep getting an error saying it can not update or restore.
I then brought my iPad in to the Apple store for some technical support. The "technician" was less than helpful and only did what I had done at home: plug into computer and try to update & restore using itunes. Needless to say it did not work. He then told me it must be a hard drive problem and since I was 2 months out of warranty that I could get a replacement iPad for $299 +tax. I asked for the manager and of course "he was busy" and said this was my only option. I asked him how thsi could've happened and he told me he had no way of knowing and didn't know what caused these things to happen.
I have been an Apple user for 10+ years and have enjoyed every product I have ever bought there. I am extremely disappointed that by me using my iPad normally, never dropping it, never spilling water on it and then their product failing that I have to pay almost $300 to get a replacement. It seems that this problem could not have been avoided, since they don't know what causes these things and that this was Apples fault for selling faulty products. I would have never bought the iPad to begin with had I known I would need to purchase a replacement only 13 months later.
I am wondering if anyone has gone through something similar and if there are any other options for me.Did you put the iPad into Recovery Mode? Follow the steps in this Apple support document:
If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support
It could be an internal hardware failure though, as the Apple technician explained. While not common these things do happen. If that's the case you options are to replace the iPad with an identical model using the Out of Warranty replacement process and paying the $299 fee or purchase a new replacement iPad.
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