Unhappy s7562 clone mtk6572 in dead...wrong rom..and formathelp me!

help me have a clone s7562 with mtk6572 and I put another firmware ...
Now the phone is dead ...no logo show. I can not get into recovery or factory mode.
The computer recognizes it when you connect to usb.

I tried other firmware from something similar but not working DRAM failed error
HEPL ME PLS!



Hardware : MTK
Model : GT-S7562
Build number : IMM76D.B9388ZMAMA2
Build date UTC : 20140408-074633
Android v : 4.2.2
Baseband v: MOLY.WR8.W1315.MD.WG.MP.V1.P5, 2014/03/18 18:20
Kernel v : 3.4.5 (liujia@liujia-ubuntu) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP Wed Dec 11 10:34:14 CST 2013