Download 112k4 firmware for Beelink MXIII TV Box from here or from here. To flash firmware on this box from PC via AMLogic USB Burning Tool read this article.Download previous firmware from here.
Update file name: MXIII_112k4_2
Archive size: 384 MB
Firmware: MXIII_112k4_2.img
Model: MXIII / M82 TV Boxes
Firmware: MXIII_112k4_2.img
Model: MXIII / M82 TV Boxes
Platform: AMLogic S802