ZTE Obsidian

The Miracle Box will not connect to this phone, I get the following error:

Definition Applied
1. Power Off Phone , Remove Battery, Insert Battery Back
2. Insert USB cable. In some cases Required Hold BootKey
3. Use Miracle Boot Key In cases Boot key not Find
4. Battery Should be Charged more then 50%
Waiting for USB Port…
Waiting for USB Port…
Set PreLoader USB VCOM Port (COM102)
Please Hold "ON" to connect with the phone…
Connected to Phone.
CPU: MT6735 SW:0000 Ver: CA00
Downloading Boot8 …
>>8th Boot(MT65xx & MT67xx/8127),the Boot not support the Phone, or CPU Bad. Select other Boot.

In reading about the box, it was stated the cpu was supported MTK6735. Any reason why I am getting the error?