Android head units) to , it is important to note that many of these generic Chinese car stereos come with "fake" Android versions that display as Android 10 but are actually running older kernels like Android 7 or 8.
Since this update is from 2021, your device may be due for a newer security patch. Check if your device supports Android 11 or newer updates in the System Update menu. k2001n firmware update android 10 2021