You did not gave us the model of your phone and its CID. But i think based on your description of your problem, you are working with a CID 49 phone such as K750i. In that case you need to flash your phone first with a "fake flash" (for K750i and W800i its k750w800_r2e_dcu.49r.ssw). Then you can now view the filesystem via FAR manager. Tou also need an appropriate rest file to be flashed back to your phone in order for your phone to turn on. Please give more details.