Solve Symphony w 92 MTK 6589 Dard Bricked topic

My phone was ok. I installed cwm recovery by mtk dorid tool. But , I wanted to install TWRP recovery by a pc software- during installation a warning message appeared and I clicked ok (something formatted – I did not remember). Then I lost my mobile network signal, null imei and null baseband. Then I install N9500_MTK6589_Miui_Revolution_4.5.23_Cwm via CWM recovery (2 times, but system closed automatically. But, third time after installation phone totally bricked ). Basically phone starts with startup sound, but with crushing screen. I was able to connect mtk dorid tool and it says Model: N9500- null baseband-null imei, then I tried to Install CWM recovery. Then phone totally bricked without starting. I tried everything from google to solve. Then I was able to firmware upgrade – stock rom (Only one time). Now, stock rom is not downloading. I used all sp flash tools. All the times one error appears –Brom Error: S_FT_Enable_DARM_Fail (4032).
Please anyone help me. (My Pc Detect My Phone as preloader usb vcom port, I am using windows 8.1 64 bit, no issue with driver software and sp flash tool)
Device Name: Symphony w 92, MTK 6589 , 1.2 GHz ,Quad Core , 4 GB rom . 512 Ram, 5 inch Capacitive Full Touch, (854*480),8MP Primary (Flash light) + 2MP Secondary.

Please Help me to solve .