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error 4000

i wanted to update my iphone 12 pro to ios 15.3.1 and got error message 4000 (unknown error. iphone could not be updated).

but on my iphone i see that there is ios 15.3.1 installed.

what shall i do?

or shall i ignor error 4000?

Posted on Apr 4, 2022 3:17 AM

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Question marked as Top-ranking reply

Posted on Apr 4, 2022 3:18 AM

Hey there,


See ☞ If you see Error 4000 updating your iPhon
 - Apple Community


3 replies

error 4000

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