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Hello! I have just replaced my iphones screen with the Wifi Antenna and the Flex cable so it can gain back some wifi. But after everything was fixed. I turned it out and my phone can’t connect to my carrier. I need help on what part to replace. The wifi seems to work fine, it’s just the signal to my carrier. Thanks in advance! Just need help on what went wrong here. Update (07/11/2017) Not working, I have already tried everything! Which includes resetting it, switching sims cards, check if all parts are installed correctly. Update (07/12/2017) Still not working. Tried the IMEI thing too.

Check if the IMEI number is displayed via *#06#.