The specific desire for Firmware 5.1, as opposed to the older 4.4 KitKat, is rooted in performance improvements. Android Lollipop introduced a significant shift in the Android runtime environment (ART), which improved application performance and fluidity on low-spec hardware like the S805. Furthermore, as app developers moved away from supporting older Android versions, the upgrade to 5.1 became essential for users wishing to maintain compatibility with streaming applications like YouTube, Netflix, or Kodi. For the MXQ user, downloading and flashing the 5.1 firmware was often the difference between a functional media center and electronic waste.
The primary risk is hardware incompatibility. Because there are dozens of variations of the MXQ S805—differing in Wi-Fi chips, Bluetooth modules, and port configurations—a firmware intended for one model can "brick" another. A user downloading a generic "MXQ S805 5.1" file may find that the installation renders their Wi-Fi inoperable or, worse, leaves the device stuck in a boot loop. Secondly, the obscurity of these download links makes them prime targets for malware. Unverified websites often disguise malicious software as firmware zips or IMG files, compromising the user's computer during the flashing process.
Searching for "firmware 51" for the typically refers to Android 5.1 (Lollipop)
There are dozens of "clone" MXQ boxes. Installing firmware meant for a different Wi-Fi chip (e.g., RTL8723BS vs. AP6212) will often break the Wi-Fi or Bluetooth functionality. Installation Methods: You generally need the Amlogic USB Burning Tool and a male-to-male USB cable to flash a file, or a microSD card for OTA updates. Where to Look The most reliable repositories remaining are: The primary community forum for legacy TV boxes.
: There are dozens of clones (v1.2, v2.0, m201, etc.). Flashing the wrong firmware can "brick" the device.
Finding a working link for firmware this old is difficult as file hosting sites expire. Here are the most reliable methods to find the file:
: Features links to stock firmware and instructions for SD card upgrading. General Flashing Instructions
