1. iMore Question's Avatar
    Hello,
    I recently bought a second-hand iphone 8 64gb and with two months of regular usage its SIM signal stopped working properly. I can't make or receive calls and 4G doesn't work most of the time either.
    I took it to a repair center and while reading the iphone's serial number through a MAC software they told me the logic board had been replaced with an iphone 8 plus logic board, because the serial was different. Is it really possible? What could have happened here?
    11-17-2019 09:04 AM
  2. Just_Me_D's Avatar
    I don’t know. You can try contacting Apple Support or iFixit Online and make an inquiry. In the meantime, if a member can answer your question, hopefully he or she will reply soon.
    11-17-2019 09:11 AM
  3. Golfdriver97's Avatar
    My first counter-question would be are they different sizes? The next question would be if the hardware can be mixed and matched; my guess is no.
    Just_Me_D likes this.
    11-18-2019 10:15 AM
  4. Mars20's Avatar
    Have you considered contacting the seller?
    11-18-2019 10:46 AM
  5. Lee_Bo's Avatar
    If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See this link for instructions on how to join iMore.
    Annie_8plus likes this.
    11-18-2019 11:23 AM

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