Many Xiaomi Mi A2 Lite users reported about the boot loop bug on their device. It appears like this: Once the Android 10 OTA update finishes the installation and tap on the ‘Restart now’ button, the phone reboots. But, it stuck in the boot screen, and random pixel lines appeared and slowly started disappearing. To fix the Xiaomi Mi A2 Lite Android 10 boot loop bug, follow the workaround given below. It works regardless of the state of your bootloader. Keep in mind that the above steps may not work on your device. We won’t take responsibility for anything that goes wrong on your device by doing the above steps. Xiaomi Mi A2 Lite Android 10 update carries the build number V11.0.2.0.QDLMIXM, and includes the dark theme, gesture navigation, privacy controls, new FM radio app, and more features. Since the update makes a boot loop on some MI A2 Lite units, we advise waiting for a new update. [source]