Chosen Solution

I’ve updated my iphone 6s to ios 11 since last week. However up until today, i’m still unable to activate, hence use my phone. Restored to factory setting countless time, but still not to avail. Always failed at the “activation server cannot be reached” thingy. I know the server might be busy, but for the whole week? Connected to laptop and itunes, but an error popped up saying that I need to put the simcard correctly (eventhough the phone picked up the cellular signal perfectly) so i cannot activate it using itunes either. So, back to my question, is there any chance that this is a hardware issue? If yes, which part was damaged or need to be repaired? thanks.

Sometime iTunes makes fail to activate use 3utool for activation with supported sim.

Have you tried updating iTunes? If that still does not work try installing it “manually” http://appldnld.apple.com/ios11.1seed/09… (iOS 11.1 ipsw file for iPhone 6s) and then use these instructions provided by OSX Daily:

  1. Connect your iPhone or iOS device to your computer
  2. Select the device in iTunes
  3. On a Mac, hold down the “Option” key and then click on “Update”
  4. On a Windows PC, hold down “SHIFT” key and then click on “Update”
  5. Select the IPSW file you downloaded and click “Choose”
  6. Let the iOS device update as usual