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Fix "This device isn't eligible for the requested build" Error in iTunes When Updating iOS

28/09/2018 Comments off

Source: osxdaily.com

 

If you're trying to update iOS to the latest version on an iPhone, iPad, or iPod touch and you get an error in iTunes saying:

The iOS Device "Device Name" could not be updated. This device isn't eligible for the requested build.

device-isnt-eligible-errorYou're encountering one the following problems: either you are using an old version of iTunes, you are using an incorrect version of the firmware for your device, or you have gs.apple.com re-routed in your hosts file.

If you know you're on the right iTunes and iOS version and you're familiar with editing a hosts file, just throw # in front of the "74.208.10.249 gs.apple.com" entry and you'll be good to go. If you have no idea what that means, read on and it'll be explained easily. First let's cover the iTunes and firmware aspect, then explain hosts changes. Try these in order, one of them will certainly fix the ineligible build error:

(1) Update iTunes

This is easy, just open iTunes and update to the latest version. This is required because the newest version of iOS require the newest versions of iTunes. Easy to resolve.

(2) use Proper iOS Firmware

The next thing you need to do is make sure you're using the proper IPSW firmware file for your iOS hardware. You can download any firmware files from these links:

A fair amount of confusion regarding IPSW seems to be in the difference between GSM and CDMA downloads in the USA this is easiest to determine based on the cellular provider: AT & T is GSM, Verizon is CDMA. If you're not sure what to do with an IPSW file, you can read our walkthrough ofhow to use them.

If you're certain you have the correct firmware file and you're still getting the "device isn't eligible" iTunes error, it's almost certainly a result of gs.apple.com being blocked in the hosts file.

(2) remove the Hosts Block

This usually comes from users who have jailbroken an iOS device at some point on their computer, or did the error 3194 fix, and as a result have a line in their hosts file blocking Apple's servers. There's two ways to fix this, the first is the easiest:

Easy: Using TinyUmbrella
TinyUmbrella prevents you from having to use the Terminal to edit system files, instead you can just launch the app and quit it.

After you've downloaded and installed TinyUmbrella, here's how to use it to remove a hosts block:

  • Open TinyUmbrella and click on the 'Advanced' button tab at the bottom
  • Uncheck the box next to "Set Hosts to Cydia on Exit"

Remove Hosts block to fix Device isn't eligible error

Now quit out of TinyUmbrella and the app will modify the hosts file in the process to remove the block, allowing you to connect to Apple's servers again. Before you try though, be sure to turn the iPhone, iPad, or iPod touch on and off again, and relaunch iTunes as well.

If you still run into problems, you may need to flush the DNS cache as well. Quit out of iTunes and open the Terminal in OS X Lion, then type:
dscacheutil - flushcache
Now relaunch iTunes and you'll be good.

Advanced: Manually Editing Hosts

  • Quit out of iTunes
  • Go to the hosts file. For Mac OS X this is located at: / etc/hosts or/private/etc/hosts and in Windows it is located at: c:windowssystem32driversetchosts
  • Open the hosts file with Administrative privileges so that changes can be made and saved (eg: sudo nano/etc/hosts)
  • Look for a line that resembles something like this:

74.208.10.249 gs.apple.com

  • Put a # in front of that to how it out, making it now look like this:

# 74.208.10.249 gs.apple.com

  • Save the hosts file
  • Flush DNS cache and restart iTunes

Whichever approach you took, this fixed the "eligible build" error and the iOS device will update as intended.

Categories: Non classé Tags: , ,

If your iPhone, iPad, or iPod touch won‘t turn on or is frozen

30/10/2017 Comments off

If your device has a frozen screen or doesn’t respond when you touch it, or becomes stuck when you turn it on, learn what to do.

If your screen is black or frozen

If your screen is black or frozen, you might need to force restart your device. A force restart won’t erase the content on your device. You can force restart your device even if the screen is black or the buttons aren’t responding. Follow these steps:

  • On an iPhone 8 or iPhone 8 Plus: Press and quickly release the Volume Up button. Then press and quickly release the Volume Down button. Finally, press and hold the Side button until you see the Apple logo.
  • On an iPhone 7 or iPhone 7 Plus: Press and hold both the Side and Volume Down buttons for at least 10 seconds, until you see the Apple logo.
  • On an iPhone 6s and earlier, iPad, or iPod touch: Press and hold both the Home and the Top (or Side) buttons for at least 10 seconds, until you see the Apple logo.

If your device still won’t turn on or start up

Plug in your device and let it charge for up to one hour.

After a few minutes, you should see the charging screen. 

 

If you don’t see the charging screen within an hour, or you see the connect to power screen, check the jack, USB cable, and power adapter. Make sure that everything is plugged in firmly, free of debris, and not damaged. You might want to try a different USB cable or power adapter.

If your device still doesn’t turn on, see what to do next.

If your device turns on but gets stuck during start up

If you see the Apple logo or a red or blue screen during startup, try these steps:

  1. Connect your device to a computer and open iTunes. If you don’t have a computer, try to borrow one, or go to an Apple Store or Apple Authorized Service Provider for help. 
  2. While your device is connected, force it to restart. 
    • On an iPhone 8 or iPhone 8 Plus: Press and quickly release the Volume Up button. Then press and quickly release the Volume Down button. Finally, press and hold the Side button until you see the recovery-mode screen.
    • On an iPhone 7 or iPhone 7 Plus: Press and hold the Side and Volume Down buttons at the same time. Keep holding them until you see the recovery-mode screen.
    • On an iPhone 6s and earlier, iPad, or iPod touch: Press and hold both the Home and the Top (or Side) buttons at the same time. Keep holding them until you see the recovery-mode screen.
  3. Don’t release the buttons when you see the Apple logo. Keep holding until you see the recovery mode screen.

 

  1. When you get the option to restore or update, choose Update. iTunes will try to reinstall iOS without erasing your data.

iTunes will download the software for your device. If it takes more than 15 minutes, your device will exit recovery mode and you’ll need to repeat steps 2 and 3.

 
Categories: Constructeur, Matériel Tags: ,