Download latest Android 6.0 stock firmware for Sunvell T95Z Plus TV Box from here, here or here. Here you can read about the unboxing Sunvell T95Z Plus Android TV Box. Download previous firmware from here.
Archive: T95Z Plus Amlogic S912 Android 6.0 2G16G TV BOX Firmware 20170223
Model: Sunvell T95Z Plus TV Box
Image file size: 846 MB
Platform: Amlogic S912
Image name: aml_upgrade_package.img
Inside archive: firmware + aml_sdc_burn.ini + u-boot.bin.sd.bin + How to upgrade TVBOX via SD Card.doc
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.