“Accessory not supported” after latest iOS update

My phone updated to the latest iOS 26.2.1 and now I’m getting the “accessory not supported” when trying to use the aux in my car. How can I either fix this or delete the last update because it’s really frustrating.

iPhone 13, iOS 26

Posted on Feb 2, 2026 9:48 AM

Reply
3 replies

Feb 2, 2026 9:16 PM in response to RusticBug

Search for accessories that have completed MFi certification. Once an accessory has completed MFi certification requirements and is reported to Apple as sold/distributed, it will be searchable in our public database of authorized Lightning, headset, charging, iAP-enabled, and Find My network-enabled accessories.


Learn how to identify counterfeit or uncertified Lightning-based accessories.


You may try this (The suggestion is intended as a guide to help you find the right options and should not be interpreted as an endorsement or promotion of any product. Please conduct your own research and make an informed purchasing decision.) --> Apple Mfi-Certified, Type C Female to Lightning Male OTG ...




Feb 2, 2026 9:16 PM in response to RusticBug

"Accessory not supported" error is not caused by the iOS 26.2.1!  Many things can cause phone problems.  If you tell people you think it's an iOS update, it might make it harder to fix or find a solution for the real issue.



Remember, the right question often leads to the solution!



Was/Is your device Jailbroken? If that's the situation, please be informed that attributing the issues to iOS updates may not be accurate.



iOS updates aim to enhance user experience, boost security, and fix bugs rather than disrupt core features. The majority of the issues after updates might stem from underlying, unmentioned factors. Updates won't typically alter personal data but may refine settings or features. Backup before major updates for safety. Review Apple's update details and backup advice for a smooth process.


Kindly consider checking your settings and addressing any device issues before attributing the issue to external factors. This could be a pure coincidence that the iOS update affected the iPhone functions.


Before initiating a standard iOS update, it's advisable to create a backup. Have you completed this step? If yes, proceed with the restoration from the backup.



See what each update does: OS — iOS 26, About iOS 18 Updates, About iOS 17 Updates, About iOS 16 Updates, About iOS 15 Updates, About iOS 14 Updates, About iOS 13 Updates, About iOS 12 Updates, and so on...



Feb 2, 2026 9:25 PM in response to RusticBug

"'Accessory not supported' after latest iOS update: My phone updated to the latest iOS 26.2.1 and now I’m getting the 'accessory not supported' when trying to use the aux in my car. How can I either fix this or delete the last update because it’s really frustrating."

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Single-Out this Device:

Have any other iPhones with iOS26.2.1 installed? If so, try connecting them, seeing if you still ge this error.

“Accessory not supported” after latest iOS update

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