out of my depth

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http://androidforums.com – Hello, Could you please help me out of my dilemma. Ive flashed the wrong firmware to my Acho c903 tablet with Rockchip batch tool. Although the rom loaded, the screen touch controls are erratic and dont respond in the correct place. I would like to return tablet to original firmware, but rockchip batch tool doesnt see it now. Ive managed to get ADB up and running from reading your threads and computer sees tablet. Ive also managed to activate usb debugging on tablet by turning it round and virtually standing on my head. I am a complete novice with ADB commands, but ive got as far finding path (General)