iPhone Region Codes Explained: Hidden Bans and Hardware Differences
When buying a used or imported iPhone, the model number (e.g., MQ9P3KH/A) is often ignored. But the last two letters before the slash are incredibly important: they indicate the Region Code.
Apple customizes its software and hardware based on the laws of the country where the device is officially sold. Buying an iPhone from the wrong region can leave you without eSIM, without FaceTime, or with a camera shutter sound you can never turn off.
The Most Important Region Codes to Watch Out For
J/A (Japan) & KH/A (South Korea)
To combat privacy violations, local laws dictate that the camera shutter sound cannot be muted. Even if your phone is in silent mode, taking a photo will make a loud clicking sound. (Note: In recent iOS versions, this sound turns off if you use a SIM card from outside those regions, but it remains a hardware-level rule).
CH/A (Mainland China)
China does not allow eSIM technology in smartphones. If you buy a CH/A iPhone, it will have a physical Dual-SIM tray (two physical nano-SIM slots) but no eSIM capabilities at all. FaceTime Audio is also disabled on these models.
AE/A (United Arab Emirates)
Historically, VoIP calls are restricted in the UAE. Older AE/A models had FaceTime permanently removed from the system. While recent changes have relaxed this when used outside the UAE, it is still a risk to buy older models from this region.
🔗 Related reading: What is EID? The Ultimate Guide to eSIM Technology
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