Not all MXQ boxes are the same. The S805 variant is distinct from S905, S912, or RK3229 models. Using the wrong firmware will brick your device permanently.
If using , the process may start automatically if the factory_update_param.aml file is present. mxq amlogic s805 android 511 lollipop download install
(or reset hole) and press the hidden button until you feel a click. Keep the button pressed and plug in the power. Flash Firmware : Once in the recovery menu (TWRP or Stock), select Apply Update from EXT , choose the file, and confirm the installation. Not all MXQ boxes are the same