Stuck at Logo

[HexBox]

Hello guys,
I have a problem, I hope you can help me with.
I used to have an EOS ROM. I decided to do factory reset and thats when my problems started. It didn't boot up anymore. After entering recovery I noticed it couldn't mount System partition. I tried reinstalling the ROM, but no success. Everytime I entered recovery, the System checkbox wasnt marked. So I decided to go back to stock, using http://androidforums.com/threads/return-your-xoom-to-stock.653230/. Now it is stuck at Logo screen and can't enter Recovery. (Goes to Reading ODM fuse, but not any further). I can still enter Fastboot and my laptop detects the tablet, when hooked up to it.
Please help me push the Recovery, cuz I'm getting "device not found" from ADB. I'm kinda lost here... Any help would be appreciated!

 

[HexBox]

Update

I managed to install TWRP, but still can't mount System Partition. On wipe I get "Failed"when trying to clean the system part. I have tried Clockwork, it didn't help either.

 

[HexBox]

Cmon guys! I don't want to JTAG it yet.

 

[slow1234]

Cmon guys! I don't want to JTAG it yet.

I am not very knowledgable about flashing, but one suggestion has come to my mind: if you can now get into TWRP (it wasn't clear whether you could based on your last post), try flashing a ROM without trying to clean the system partition. Just make sure the ROM matches the TWRP (i.e., big part ROM with big part TWRP).

Oh - another thought - folks in a number of threads have stated you need to explicitly follow both the recovery and ROM instructions for the XOOM. If you miss a step, people have had issues.