Download Marshmallow 6.0 stock firmware PC version for Beelink R68 II TV Box from here or here. Download Marshmallow 6.0 stock firmware SD card version for Beelink R68 II TV Box from here or here. Download Amlogic USB Burning Tool v2.0.8 from here or download Amlogic Burn_Card_Maker v2.0.2 from here.
Archive: R68II_106M0 QCA9377 / R68II_106M0_sdcard
Model: Beelink R68 II TV Box
Image file size: 382 MB / 428 MB
Platform: Amlogic S912
Inside archive: firmware + factory_update_param.aml + recovery.img
Image name: R68II_106M0.img / q201_9377-ota-20161024.zip
Build number: Amlogic/q201_9377/q201_9377:6.0.1/MHC19J/20161024:user/test-keys
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.