Symphony FT37 Power Problem

FT37
I have changed new cpu.
after changing it phone can
start with keypad light only.
i tried rehoting it, same case.
i ried flashing with gpg dragon, same case.

here is flash log....

>>> Getting Mobile Connection Info...
VCC Pin:
GND Pin:20,
Signal Pin:3, 4, 21, 22, 23, 24,
>>> Scanning Mobile PinOut...
>>> USB Pinfind No need Hold Mobile Power key...
USB Pin Out: D+:22 D-:23
HardWare:VID:0E_8D PID:00_03
This is a MTK chip set...
>>> Scanning Mobile USB Port...
>>> Detecting COM PortCOM20
Driver Name->>>MTK USB Port
Mobile Connection Success...
CPU_ID:MT625A
Hardware Version:CA01
Software Version:0001
>>> Downloading First Boot...
Initialization RAM Error,FUNC boot_init_1
>>> Return DATA Error!!!

what can i do now?