Firmware comes in a zip package containing Flash File, Flash Tool, USB Driver, and How-to Flash Manual. They have no download page and the link to their official support forum is broken. Yundoo is a small manufacturer that produced a handful of Android TV boxes. Their latest model, the Y8, came out several years ago and it looks like their official website has not been updated since late 2017. Uniuga sells several Android TV boxes based on the AmLogic 905 chipset. Firmware updates for several of their devices are available on their Download page. Tanix manufactures a complete line of Android TV boxes.
The fingerprint sensor, for example, is not working properly, so be careful. If you want to try, download and install via the following link. If you are looking for AOSP 11 (Stock) ROM for Sony Xperia XA2, then you can download and install LineageOS 18.0 which supported the phone recently. The ROM looks stable and suitable for everyday use as long as you don’t care about the Wi-Fi display inability to function. These drivers are mainly for the devices powered by the MediaTek chipset. With these drivers, you can transfer files, flash the firmware files on the device, etc. Before going to install stock ROM you need to take a backup of all your messages, photos, and apps from your smartphone.
♞ There should be two devices like Mobile/tablet & Computer. ♞ USB driver should be a communication medium which connects the computer and Android device. Firmware Panda | This site is not affiliated with Google or any of the device manufacturers listed on this site stock ROM (firmware). Now you have successfully installed Stock ROM from Recovery.
The added functionalities of Havoc-OS include tons of mods for the Status bar, buttons, lights, gestures, and other various configurations. While at times, it lacks stability, I can surely say that it has the maximum customizability features.
Also, on some ROMs, you may have to flash a GApps package such as OpenGapps (website) or NikGApps (website). I have personally tested almost all the ROMs listed below on my Redmi K20 Pro, Poco F1, and Mi A1.