"KSW" is a prominent Chinese manufacturer of Android head units, often sold under various brand names like Witstek, Ewaying, and others. Their software suite is a heavily modified version of Android, designed to integrate with a car's proprietary systems through a separate MCU (Microcontroller Unit). KSW provides a "custom launcher and framework to replace the built-in car screen, giving you a full Android experience" inside older vehicles.
This represents the underlying Android version. In Android’s alphabetical version history, "Q" stands for Android 10 .
Do unzip the file if it is named exactly Ksw-Q-Userdebug_OS_vX.X.X-ota.zip (where X represents the version numbers). The system bootloader requires the sealed .zip archive.
After a successful update, be aware that:
Because userdebug grants root access, you can install custom launchers (FCC Launcher, Agama), modify the system UI, change boot animations, or install Viper4Android audio mods. The "update" often patches the boot image to allow Magisk (root manager) persistence.
