Improved iPad layout support and usability. Enhanced authorization flows for Location, Camera, Microphone, Bluetooth, and Local Network access. Fixed an issue where Location Services settings could not be opened correctly. Automatic testing now starts only after permission handling is complete, reducing false results. Fixed volume button detection after unlocking the device. Improved overall test stability and resolved known issues.

Precision Navigation: Optimized the Location Services setup flow. If system location is disabled, a native prompt directs users right to the official Location Services switch in one click. Seamless Auto-Resume: Returning to the app after enabling permissions automatically detects the change and resumes testing instantly—no manual retries needed.

Added iPad support with optimized portrait and landscape layouts. Improved the one-tap permission flow and location permission detection. Tests now start automatically after permissions are granted. Kept the display awake during testing for more reliable hardware button checks. Improved compatibility with computer-provided test configurations. Fixed issues and improved overall stability.

Improved volume button detection after screen locking or app switching. Improved the location permission flow. The screen now stays awake during testing. Enhanced overall stability and fixed known issues.

Fixed TrueDepth & Face Tracking Crashes: Resolved a critical crash issue that occurred when rapidly switching or repeatedly retesting the "Face ID (TrueDepth)" and "Face Tracking" tests. This was caused by concurrent hardware access conflicts at the camera initialization level. Refactored Camera Scheduling Architecture: Introduced a centralized, thread-safe hardware scheduling queue (Camera Queue). The activation and deactivation of all camera lenses (Front, Rear, Telephoto, and TrueDepth) are now strictly queued and executed sequentially, dramatically improving overall stability during high-frequency testing. Enhanced Fault Tolerance for Damaged Devices: Optimized the fallback and exception-handling logic for broken hardware components. In extreme cases where the Face ID dot projector/infrared hardware is completely shattered, or the flashlight is missing from the device, the software will now safely catch the low-level exception and gracefully mark the test as failed without crashing. Testing Experience Optimization: Improved the exception capturing mechanism for Face ID evaluation, making the automated grading process smoother and more accurate.

What's New in This Version (4.0): [App Icon Update] Updated the application icon. [TrueDepth Sensor Optimized] Optimized the TrueDepth camera diagnostics. Removed lockscreen passcode and Face ID enrollment requirements for faster startup. Supports optical validation via physical distance sensing. [eSIM & Baseband Test Upgrade] Enhanced cellular baseband diagnostics for eSIM and cardless devices. Added a manual Field Test command helper to avoid automatic detection false alerts. [Stability & Bug Fixes] Resolved several known crashes and optimized session resource cleanup during rapid test transitions.

[Core Optimization: Automated Pipeline Stability] Refactored Permission Authorization : Introduced a brand-new Sequential Permission Manager. Before starting the first diagnostic flow, the app now guides the operator to sequentially authorize essential system permissions (Network, Camera, Microphone, Location, and Bluetooth). Resolved False-Negative Timeouts : Completely fixed the "false failure" bugs caused by unexpected Just-In-Time (JIT) system popups (such as the China-region WLAN prompt or Bluetooth authorization) blocking the automated test countdowns. The automated test sequence is now guaranteed to run without any popup interruptions, significantly improving stability for factory floor deployment. [Feature Upgrade: Face Tracking Module] Visual Dynamic Tracking : Added a real-time rendering of a dynamic green bounding box during the RGB Face Detection test, providing intuitive visual feedback. Tracking Indicator : Implemented a smiling emoji that dynamically follows the face bounding box, allowing operators to quickly verify that the underlying Vision engine is functioning correctly. UI Compatibility Fix : Fixed a bug where the icon for the "Face Tracking" test item appeared blank on certain iOS versions due to SF Symbol incompatibility.

Hardware-Adaptive Testing Automatically detects device capabilities and adjusts test items Face ID devices test facial recognition; Touch ID devices test fingerprint Camera count auto-detection: single/dual/triple lens configurations matched automatically Zero manual configuration — plug in and test Enhanced Biometric Detection Dual-layer auto-detection: ARKit face tracking + LAContext hardware probe Automatic fallback when front RGB camera is damaged — accurately verifies IR & dot projector status No Face ID enrollment or passcode required — zero-config for QC production lines Added Touch ID auto-detection for all iPhone models with Home button Real-Time Auto Upload Test results POST to PC backend immediately after each item completes Live upload status displayed in bottom bar (Uploaded x/xx) Auto-retry upload when connection recovers after disconnect Uses the same API endpoint as manual upload button for full compatibility Retest Notification System Automatically notifies PC to clear old results when retest is triggered Supports full retest / failed-only / single item / module retest modes Sends complete list of retested item IDs for precise PC-side handling Enhanced Upload Data Local cache files now include UDID / IDFV device identifiers Enables accurate offline-to-online data matching Connection status indicator integrated into test flow bottom bar

Version 2.0 Updates: 1. Added GPS / Compass hardware test 2. Improved microphone detection sensitivity for faster testing 3. Face ID test now shows live camera preview with depth sensor validation 4. Upload test report directly to PC after completion 5. Fixed retest freeze issue 6. Full 29-item hardware diagnostics flow