Chosen Solution

hi all , my iphone 5s , is really getting the better of me and can not for the life figure this one out , i have a full network signal 3g/4g signal , i can use my data allowance , wifi is working , but i can not make or receive calls or text messages , here is what i have tried .

  1. reset network
  2. flipped caller id on .
  3. soft reset
  4. completely reset the phone . 5 . updated to 9.3
  5. downgraded to 9.1.2
  6. its not blocked ive checked .
  7. i have tried everything i can think of and still no joy . i might be missing something but i really need help on this one.

You may want to check the connection for the antenna in the phone . Has there been occasion to have the phone open lately like a screen change or other service ? It may have been disconnected . Just a guess here but worth a look iPhone 5s Teardown in case you need help with teardown