I can tell you I didn't backup my device but I un-bricked the device with the image below, the only problem I faced is that my small infrared remote does not work.
TWRP is the needed software to backup your device. Try the link below for this backup:
Then to flash your device you need a shield USB cable A-A connected to the most left USB port of the device, the one near SD slot. Then using USB burning tool perform the below steps:
press the toothstick and keep it pressed, with no power supply connect the USB cable but having the USB Burning Tool opened. You will see connected. Then import the image below and flash the device, you will have a nice surprise of working device with Lollipop 5.1.1
https://mega.nz/#F!mtlkSYba!ynMZU6b6iPPdOjlmhzYBTw
Best regards,