Iphone error 21 when restoring

How To Fix iTunes Error 21 While Restoring iPhone / iPod Touch

Itunes Error 21 is the most typical error customers face while performing a restore on the iPhone. Tool Firmware Improve mode often called DFU mode, this mode allows you to restore your iDevice with an original iOS version or a custom iOS version.

Iphone error 21 when restoring

To fix iTunes Error 21 in order to restore your iPhone/iPod touch, connect to your device into DFU mode first to get by following the instructions according to your device, The steps below will help getting into DFU mode in case you do not know how to:

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How to Fix iTunes Error 21 While Restoring

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facebook/bam.tavera Bam Tavera

this helps me alot. the difference between recovery mode and dfu mode. the 1st picture above shows on my iphone 5 (which i thought the dfu mode) i have the problem (-1) while restoring the firmware. it always stuck on restoring the firmware part. (final part. the loading bar on the phone stuck at 75%) and it comes back to the image 1 above. i’ve tried it multiple times but still didn’t get a luck. but when i tried it on a different computer the error (21) appeared. this error bring me to this page. i’ve tried using the instructions above. it just need a proper timing. here’s a tip: while on the image 1. start pressing home botton and power botton. the device will shut down and turn into a full black screen. when that happened, wait for just a second and a half and then release the power botton. in this part, the itunes should detect your device and you can now restore it properly.

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