what is mean by error 4000?
what is mean by error 4000? and also I am unable to connect internet through WIFI ( wifi connection okay but no internet )
iPhone 8, 14
See this discussion about iOS14 Error 4000 --> https://discussions.apple.com/thread/251804526
which was recommended by an Apple Community Specialist in this post --> https://discussions.apple.com/thread/252380437?answerId=254515885022#254515885022
Another solution by manually selecting the update file in WIndows:
https://discussions.apple.com/thread/252708257?answerId=255119643022#255119643022