DiPlay Wired USB CarPlay Setup and Compatibility

Connect in order

1. Use the vehicle’s documented USB data port and a known data-capable cable. Unlock the iPhone.
2. Open DiPlay and select Connect with USB. Approve USB access on Android and Trust/CarPlay prompts on the phone.
3. Approve the local VPN permission if shown. It carries the USB network connection locally, not a remote internet VPN service.
4. Keep other projection apps closed and start with H.264 / 30 fps / Default scale.

Phone-specific evidence

Seal 06 report #57 says iPhone XS Max / iOS 18.7.1 connects on 0.2.7, while iPhone 13 Pro / reported iOS 26 reconnects repeatedly on the same car. That is a report for those combinations, not all iOS 26 phones.

Han / DiLink 4 report #11 describes working wired projection and touch, but repeated permission prompts and a 15–25 second startup. A head unit can permit a working link while retaining firmware-specific permission behavior.

If it still fails

Save a diagnostic report after the failed attempt. Record whether the iPhone is discovered, permissions are accepted, the UI loops before projection, or audio/video starts then stops.

Do not infer an ADB requirement from a USB failure. Core CarPlay has no runtime ADB requirement.

USB handles bounded USBMUX control-reply padding and permits unfinished Manual hotspot settings for wired sessions (PR #114/#130). The USB correction targets captured iOS 27 framing. End-to-end wired media and reconnects on the non-BYD device in #100 still need confirmation.

#122 reports repeated access/pairing prompts without a CarPlay connection. Its exact DiPlay, firmware and iOS versions are incomplete; the report establishes neither a universal cause nor a fixed release. Keep that symptom separate from USBMUX framing failures and record the exact versions and diagnostics.

Changes and checks in 0.2.13

USB attachment switches transport within the activity; permission grants are checked. Narrow USBMUX trailer handling covers payload replies. Wireless can start without Android USB service, but wired/CH341 still requires it; the separate black-screen/decoder fault remains unresolved (PR #268/#298/#300).

The APK signing certificate matches 0.2.12. Update the same package in place to retain settings/pairing. Reproduce failures on 0.2.13 and save a fresh diagnostic report: Android 10+ uses Downloads/DiPlay, Android 9 a picker; View report/Share and app/private-storage fallbacks remain. No automatic upload occurs.

Changes and checks in 0.2.12

Apple-device USB attachment matching is corrected. Optional accessibility assistance confirms only DiPlay’s own system USB permission dialog; unrelated apps and dialogs are excluded. Normal USB authorization remains required (PR #170/#224).

Changes and checks in 0.2.11

Reconnects use settled display geometry and normal readiness checks. The wired VPN must be scoped to DiPlay or startup aborts. A narrowly matched Android 10 P2P Builder failure gets one guarded Auto-mode recovery (PR #173/#168).

Reported setups

The following are source reports, not a universal affected-car list. Unknown fields remain unknown.

Related GitHub issues

Closed does not necessarily mean fixed. The source is authoritative for later updates.