: There are dozens of clones (v1.2, v2.0, m201, etc.). Flashing the wrong firmware can "brick" the device.
Get the Amlogic USB Burning Tool (Version 2.0.5 or 2.0.8 works best for older chips like the S805).
Unplug your TV box from the power. Hold down the hidden reset button inside the AV port using your toothpick. While holding it, plug one end of the Male-to-Male USB cable into your PC and the other end into the USB-4 port (or the port closest to the SD slot) of the MXQ box. mxq s805 firmware 51 download link
If you need to revert to a stable factory version, these are the common stock builds: : Available on AndroidPCTV .
Download and install the (Version 2.0.8 or newer recommended) on your Windows PC. : There are dozens of clones (v1
If you cannot find a live link, consider retiring the S805 box and upgrading to an S905X3 or S905W2 device, which runs Android 11 or 12. Alternatively, use the "Amlogic Burn Card Maker" to try booting from an SD card rather than overwriting the internal NAND.
Launch the tool. Click File > Import Image and select your downloaded MXQ S805 .img firmware file. Unplug your TV box from the power
The very first boot after upgrading to Android 5.1 Lollipop can take anywhere from . The system needs time to build caches and optimize system files. Do not unplug the power cord during this initial startup screen.
: For a smoother experience with modern Kodi versions, many users prefer LibreELEC for S805 over Android 5.1 due to better stability. Installation Guide
They provided some of the most stable 5.1 builds for the "all-black" MXQ variant. so you don't flash the wrong file?