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Post originale di: Minho ,


Did you only perform an iOS upgrade or did you do a screen repair at the same time?

If you did a screen repair, then you may just have a defective screen or did something wrong during re-assembly.

If you did not replace the screen and can confirm that it worked properly prior to your update, then try to do a full DFU Restore (this will wipe the device) or try installing the latest iOS Beta version (11.2.5) to see if that helps.