iPhone 17: Pixelated display and unstable wireless dongle after iOS 27.

After update to IOS27, my iPhone 17 finally ends with the pixelated problem connected by cable on a MB GLA200. But the pixelated problem still remain w. a wireless dongle, I didn´t see any change with the new IOS27. Bluetooth and WIFI connection to the wireless dongle are unstable.

Posted on Sep 16, 2026 3:23 PM

1 reply

WheelieNick

Level 9 (74,110 points)

Oct 22, 2026 1:04 AM in response to Fernando Armirola

Hi there

Please try this to see if you can fix the issues

Reset Network Settings: Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings to clear out corrupted Wi-Fi and Bluetooth configuration files.
Update the Wireless Dongle: Check the manufacturer's website or companion smartphone app for your specific wireless CarPlay adapter to see if a firmware update is available to address iPhone 17 compatibility.
Test Alternative Adapters: Some users found better stability with alternative third-party adapters (like specific newer revisions of Ottocast or Carlinkit), though results can vary.
Revert to Wired CarPlay: Since the direct cable connection pixelation was resolved by iOS 27, using a wired USB connection remains the most stable option while waiting for subsequent iOS or adapter firmware patches.