Unable to boot my phone after upgrading , resetting to Factory settings and trying to restore old backup

I have Lg optimus 2x p990. I recently rooted and upgraded to Jelly Bean (4.2.1)

Accidentally, I did factory reset and tried to restore old backup. Now I am unable to boot

I just can come till ClockMod recovery and Download modes only

I dont have ROM in my SD card to update it directly nor is my SD card detecting via USB.

I tried installing USB latest drivers and also tried to flash via ODIN, Smartflash

Nothing seems to work.

I am caught a LG initial screen which keeps coming continuously.

Please let me know if any pointers

For me, I just want to make my cell phone work.