I tried to flash Infinix S5 X652a firmware on my tecno kd7 and it succeeded. I did it with Tecno Flash tool. But the problem was that the phone didn't boot. So i decided to come back to my tecno firmware but when i flashed it with Tecno Flash Tool i got : "Da connection failed: Status Ext Ram Exception". I tried to format the phone with SP Flashtool, but there i got "Auth File Needed". I also tried to get format the phone with Miracle Box, i got:
Waiting for USB Port...
Set MediaTek USB Port (COM3)
Connecting to Phone,Wait..
Connected to Phone.
CPU: MT6765 SW:0000 Ver: CA00
Downloading Boot8 ...
>>The Boot not support the Phone, or CPU Bad. Select other Boot.
I really need your help now, thank you for the time you'll take to answer.