Cebu City, Philippines
Join Date:Joined: Jun 2011
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You may be able to do that, you may need a CWM backup image from someone, but I wouldn't suggest it as it also contains the efs and it will overwrite your IMEI too with his. Which is a bad idea as whatever he downloads in the Market, will be downloaded to your's too, or so I've heard. Since CWM backs up the EFS partition too.
I think that should be in the normalboot.img, you can try to open up the firmware with 7zip or WinRar, you'll find it in there. I wouldn't mess around with it too much though, then again, have you tried Kies? what has kies detected about your tablet?
On another note, if you have an efs backup on your device you can always copy that and paste it into that guy's nandroid backup and replace it, so the data that get's replaced is with your IMEI instead. That's one workaround, but efs gets generated on first boot, which you seem to be unable to do right now.
Best bet would be to flash CWM Recovery and do a complete wipe with internal aswell. Something else is conflicting with it.