Chosen Solution
I cant make calls with iPhone 7. Everything works 4g, wifi, SMS etc. But when i try to call with it it the calls just doesnt go through. Am not able to call the number with other phone either. How can i fix this
Sounds like a 3G antenna fault. There are two antennas that go to the board near the screen / charger port connector. Sometimes removing one of them will get 3G working properly without notable signal degradation. Has any parts been replaced on the phone before the problem occured?
