Support Restore System files on bricked Micromax A90

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http://androidforums.com – Dear Friends, I was trying to modfiy some of the system files, in once case unsucessfull. Now my A90 is bricked i.e struct in the boot up screen. I tired connecting my bricked phone to adb shell but my desktop is not detecting the phone. I don't have CWM recovery installed on my phone. It has only Andriod System Recovery <3e. I tried wipe all data & Factory reset, but not help. I think factory reset do not replace system files. (system/framework/) Now is there any way to recover my A90 ? Thanks in advance. (General)