tecno i3 show this eroor

Please Make sure Mobile better has Power...
>>> Searching Mobile Port...
Get Mobile Port is: COM176
>>> Device driver identification:
MediaTek PreLoader USB VCOM_V1632 (Android)
>>> Mobile Has Connect...
CPU_NAME: MT6735
>>> Reading Mobile Hardware Info...Success
HW_Inf: 8A00 SW_Inf: CA00
>>> Initialization Mobile ...Success
>>> Downloading Boot1 To Mobile Phone...Fail