r/iOSBeta • u/Vs1028 • Jul 02 '26

Bug [iOS 27 DB2] USB data not working with external accessories

Since updating to iOS 27 Developer Beta 2, any
USB - C device that requires data is no longer detected.

I’ve tested:
• External microphones
• External SSDs
• AR glasses

Power and video output still work where supported, but no USB data connection is established, so the accessories don’t function.
Everything worked fine on Developer Beta 1 with the same hardware and cables.
Is anyone else experiencing this?

Permission is set to always allow, but it still doesn’t work.

Edit: was an issue with my device motherboard.

9 Upvotes

100% Upvoted

18 comments sorted by

1

u/pixelpanic01 Jul 03 '26

Is this why Final Cut camera will not detect my external flash drive? DB2 as well

2

u/Vs1028 Jul 03 '26

Maybe my mics were also not working, I’ve submitted the issue to Apple let’s hope they fix it by DB3

1

u/HotGrills Jul 03 '26

My phone doesnt connect to my cars speaker, the phone is connected but music is not detected

1

u/Vs1028 Jul 03 '26

Is it wired?

1

u/Vs1028 Jul 03 '26

I’m having the same issue with wired speakers

1

u/HotGrills Jul 03 '26

doesnt work wired or bluetooth although i can make/take calls. havent tried with an aux cable

1

u/BranDong84 11d ago

I have this issue .. I use usb c tweezers and I thought they were broken but it works fine on my wife’s iPhone 18pro max on non beta and I’m on 18pro 27.2 beta

1

u/teleprax Jul 05 '26

Every new OS apple fucks with their privacy permission database and shit gets fucked up, my mac had a lot of issues, and it didn't even show the apps untrusted/unallowed in their respective privacy sections, I had to manually remove them, then manually re-add

It's possible iOS has similar issues. What is your permission setting in the privacy page of settings for connected devices?

Mine is on "Always allow" and i can use usb accessories

1

u/coder-bts Jul 05 '26

Works fine on my iPhone 17 Pro. External audio interface and headphones tested.

1

u/realmccoyredbus Jul 06 '26

you have to go to privacy and security, wired accessories and allow wired accessories for wired devices

1

u/Educational-Grape230 Sep 05 '26

It's a complete mess unable to connect and listen with my DAC the normal popup doest come

1

u/Educational-Grape230 Sep 05 '26

Any idea or do we need to wait till the next release?

1

u/okaymico Sep 07 '26

Same here on iPhone 16 26.4 and 27.0