Regarding the modifications in CA520 latest version 260522, please be informed as follows:

1. support for camera model 8800.support for camera model 8800.

2.Optimized the issue of TX disconnecting intermittently (low probability).

3.Optimized the issue where the TX disconnect light keeps flashing but fails to reconnect (low probability).

4.Optimized the issue where TX light does not flash and RX does not display camera画面 (camera view) (low probability).

5.Fixed the issue on LZY-QT76 where after pressing the car's home button to return to the head unit interface, it cannot come back.

6.Optimized the issue on Mercedes-Benz original buttons where music pauses correctly but cannot resume playback when pressed again.

7.Optimized the issue on Volkswagen 869 where there is no sound for a second incoming call while in the FM interface.

8.Optimized the issue where reconnecting after disconnection does not restore the previous split-screen or picture-in-picture state.

9.Optimized the issue where switching the camera view in CarPlay may flash one frame of the CarPlay UI (low probability).

10.Optimized the issue where the overlay function bar is positioned too low on irregular head units.

11.Optimized the reconnection logic.

12.Optimized the low-probability freeze issue of the camera view.

13.Optimized issues listed in the bug list.

14.Modified knob-related issues.

15.Improved the upgrade process and added SN-based upgrade.

16.Fixed the issue where the screen freezes when switching between split-screen and picture-in-picture modes.

17.Optimized the issue where the TX fails to connect with low probability after long-term simulated repeated plugging/unplugging of the receiver.

18.Optimized icon overlapping and improved the issue of overly small icons on low-resolution head units.

19.Optimized UI stability.

20.Fixed the issue where opening the phone's camera app while the camera is in full screen automatically switches to the CarPlay interface (CarPlay is already mirroring).

21.Optimized the issue where TX enters recovery mode for upgrade, fails again, and then pairs with RX with low probability.