@nenito2k My experience upgrading my Egreat A10 to Android 7 beta2: For some SMB testing moved up to A7 once more. Ran in to troubles doing so as reported by many, What seems to be a formula that works: - Use a stick that worked before for Android 5 and put the Android 7 files on it. Disconnect everything including the LAN! - Put the stick in the USB3 and do the update using the PIN pressed. This will result in the well-known error. Switch off - Now put the stick in the USB2 port and once more do the pin procedure. Now it will start with the ring instead of the robot (new bootloader was installed with previous step). - Have a very long wait as mine stopped at 20% for many minutes. After around 10 minutes it booted with A7. If you don't get the ring then it will never install Android 7 during that step/try yet. Never managed to upgrade the OS in one step/try. Once on Android 7 updates (ring) work again in one step as with Android 5 before (robot). Don't ask me the logic behind all this, but did it twice with success.