If you get a “this accessory is not supported by this device” while trying to use your iPhone 18 Pro, try these fixes.
Your accessory may cause this error message because something went wrong when you tried to plug in and use this accessory. Likewise, you may get also “this accessory may not be supported”. Several accessories, e.g., USB-C cables, Keyboards, chargers, Bluetooth accessories, may not work properly and cause this. There can be several reasons for this error message:
- Your iPhone 18 Pro is not up to date
- The accessory you are trying to use is not MFi (Made for iPhone/iPod/iPad/Apple Watch) certified. You can also charge iPhone with “Made for iPhone” or other third-party cables and power adapters that are compliant with USB 2.0 or later and with applicable country regulations and international and regional safety standards.
- Your accessory is broken or dirty
This error message may cause your device to freeze and become unresponsive. Non-certified, knock-off cables and accessories will cause this. There are probably thousands of accessories for iPhone. And some of them may not be compatible with your iPhone.
You should not use these accessories because not only they will not work properly but also they may also damage your iPhone. You can easily check if your accessory is certified by searching on Apple’s website. Also look for MFi logos (saying Made For label, like Made for iPhone etc) when shopping.
If you are sure that your accessory is made by Apple or MFi certified, then try the following fixes:
1–Update your iPhone 18 Pro to the latest version of iOS. You can do so wirelessly or via your computer. You can see your device correct iOS version by going to Settings > General > About.
2-Clean your accessory. For instance, if you see this message when you want to charge your device, it is possible that your USB-C cable may be dirty. Or your cable may be failing because of corrosion. Try to clean it. You may have to replace your cable. You may also want to contact Apple or its manufacturer, especially if your accessory is still under warranty.
Furthermore, check the USB-C port for debris. You may want to try gently shaking the phone to get rid of it. You may also want to use a small, soft unused toothbrush to clean it.
3-Unplug and plug your accessory. Try this a few times.
4-Unplug your accessory (turn it off if possible) and restart your iPhone 18 Pro and then reconnect again. You may turn off your iPhone by going to Settings > General > Shut Down. And then restart your device.
5-Inspect your accessory. Do you see any physical damage? If your accessory is damaged, you may want to replace it.
If you are still having this issue, you may want to reserve a Genius Bar appointment for inspection. You may also want to contact your accessory’s manufacturer.
